Communication, media and displays

A small prize. A room shaped so a whisper carries is a curiosity for visitors; unlike the prison's chance echo, it is something a builder can be hired to make.

Who is paid. Owners of halls and museums pay for it, and since any skilled builder can shape such a room, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Signalling to beings on other worlds satisfies curiosity and earns nothing unless someone answers.

Who is paid. Nobody could be charged for it one by one, so a government pays, and the observatories and builders that already hold such contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Printing the paper at home saves a delivery and is a convenience for readers.

Who is paid. Readers pay for the machine and the paper they pick, the machine is easy to copy, and the newspapers that own the news collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. Seeing distant events live at home changed how most people spend their evenings and learn the news.

Who is paid. Households buy sets and pay for channels, and since sets are easy to copy, the firms that own the factories, the stations and the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Hearing any concert at home whenever you like is how most music now reaches people, and it is worth an industry.

Who is paid. Listeners pay a regular fee, and since the wiring is easy to copy, the firms that already own the music and the lines into homes collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Messages on the clouds are one more place to show advertisements, and they depend on the weather.

Who is paid. Advertisers pay, and anyone with a strong projector can light up the sky, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. News spoken to subscribers as it happens is worth an industry of its own.

Who is paid. Subscribers pay, sending speech is easy to copy, and the firms that already gather the news collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Seeing the person you talk to changes how families keep in touch and how firms meet.

Who is paid. Ordinary people buy it; the screens and cameras are easy to copy, so the firms that own the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Getting the news at the moment and place you choose is a convenience over waiting for the paper.

Who is paid. Readers pay; the machine is easy to copy, so the news firms that already gather the reports collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Messages to beings only believed to live on other planets satisfy curiosity and earn nothing unless someone answers.

Who is paid. Nobody could be charged for it one by one, so a government pays, and the observatories and builders that already hold such contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Radio between people in sealed suits is essential to the few who work in such suits and of no use to anyone else.

Who is paid. Assuming the suits are worn by space crews and the like, a government pays, and the firms that already supply suits and radios to such programmes collect because the radio is easy to copy.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A constant stream of news and persuasion aimed at the public is broadcasting, which is an industry of its own.

Who is paid. Advertisers and political interests pay to reach the crowd, the description names no scarce channels and the loudspeakers are easy to copy, so the news firms that already own the audience and the places the speakers stand collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Watching stored films whenever you choose is home entertainment, an industry of its own.

Who is paid. Households buy the player and the films, players are easy to copy, and the studios that own the films collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A personal screen for watching films and pictures anywhere is worth an industry of its own.

Who is paid. Ordinary people buy it; many firms can make the device, so those who already own the films and the ways to deliver them collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A personal screen for watching films and pictures anywhere is worth an industry of its own.

Who is paid. Ordinary people buy it; many firms can make the device, so those who already own the films and the ways to deliver them collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Assuming the planets are settled as in the story, a message link among them carries all their trade and news, an industry of its own.

Who is paid. Assuming firms and settlers pay by the message, nothing described stops a rival from building its own stations, so the carriers and fleet owners who already hold the home networks where every message starts and ends, and the ships to place and tend stations, collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A flat screen you hold in one hand is the face of nearly every modern personal device, an industry of its own.

Who is paid. People buy it for themselves, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Seeing the person you are talking to is something most people now use, and it is worth an industry.

Who is paid. Ordinary people pay for the device and the line, and since many can make the device, the firms that already own the phone networks and handset brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. News sorted to each reader's interests changes how the news trade reaches people.

Who is paid. Readers pay by subscription; the sorting is easy to copy, so those who already hold the reporting and the audience collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Sending a copy of a written page down a wire in moments saved offices days of post and was worth an industry.

Who is paid. Offices buy the machines, and since many firms can make them and all must work together, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Seeing the person you are talking to is something most people now use, and it is worth an industry.

Who is paid. Ordinary people pay for the device and the line, and since many can make the device, the firms that already own the phone networks and handset brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. A phone carried everywhere changes how most people live and work.

Who is paid. Ordinary people buy it; handsets are easy to copy, so the firms that own the networks and airwaves collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Letting a scattered group meet by sound and picture saves firms a great deal of travel and is worth an industry.

Who is paid. Unlike a call between two people, a group meeting is mostly bought by firms for work, and as it is easy to copy, those that already own the networks and office software collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Outdoor screens showing news to crowds are a public convenience.

Who is paid. I assumed advertisers pay for the audience; screens are easy to copy, so the owners of the busy sites collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Seeing the person you are talking to is something most people now use, and it is worth an industry.

Who is paid. Ordinary people pay for the device and the line, and since many can make the device, the firms that already own the phone networks and handset brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A fixed loudspeaker system for speaking to people in public places is an ordinary piece of public equipment.

Who is paid. The authorities pay to install it in streets and squares, and since it is easy to make, the firms that already hold such supply contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Seeing the person you talk to changes how families keep in touch and how firms meet.

Who is paid. Ordinary people buy it; the screens and cameras are easy to copy, so the firms that own the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Hearing through the skull bones helps some people with poor hearing and suits a few uses, but for most it is one more kind of earphone.

Who is paid. People buy it for themselves and the vibrating part is simple to make, so many firms sell it and none keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Hearing your messages from anywhere is a convenience.

Who is paid. Phone users pay; it is easy to copy, so the firms that own the phone networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Beaming power as well as data through the air would free devices from plugs and batteries, which goes well beyond the real thing that only carries data.

Who is paid. Households and firms pay for the service, and since the method could be copied, the firms that already own the power lines and networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A radio worn on the chest that sends whenever you speak is a hands-free tool for teams, not a phone for everyone.

Who is paid. Unlike a pocket phone on a public network, this is a short-range team radio that work crews and soldiers would be issued, and many firms can make it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Seeing the person you are talking to is something most people now use, and it is worth an industry.

Who is paid. Ordinary people pay for the device and the line, and since many can make the device, the firms that already own the phone networks and handset brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Earpieces that shut out background noise are a comfort many like but few need.

Who is paid. People buy them for themselves and small earpieces are simple for many firms to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Letting both sides talk at once is an improvement to radio sets that already exist.

Who is paid. Operators of ships and aircraft buy the sets, and since many can make them, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Seeing the person you are talking to is something most people now use, and it is worth an industry.

Who is paid. Ordinary people pay for the device and the line, and since many can make the device, the firms that already own the phone networks and handset brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A thin screen for the wall is the form nearly every display now takes and is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A finished print in moments is a convenience over waiting for film to be developed.

Who is paid. People buy the camera and the film, and once the trick of a self-developing print is known other camera makers could copy it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. An artificial world that feels real would be worth an entertainment industry of its own; I judged the full promise, which is larger than anything sold so far.

Who is paid. Ordinary people buy it; the machine can be copied once shown, so those who already own the stories and worlds people want to enter collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. The best teachers reaching every student would cut the cost of schooling; I judged the promise, which is larger than what was built.

Who is paid. Assuming students and families pay for the lessons themselves, and since a school subject belongs to nobody the way a novel or a song does and no certificate is described, anyone can record and sell lessons, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Paying to watch a live match at home is worth an industry of its own.

Who is paid. Viewers pay; the sending is easy to copy, so those who already own the sporting events and the broadcast networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. Seeing distant events live at home changed how most people spend their evenings and learn the news.

Who is paid. Households buy sets and pay for channels, and since sets are easy to copy, the firms that own the factories, the stations and the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Unlike the first television sets, this is a thinner form of a set people are assumed to have already, so the gain is a better screen, which is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. Seeing distant events live at home changed how most people spend their evenings and learn the news.

Who is paid. Households buy sets and pay for channels, and since sets are easy to copy, the firms that own the factories, the stations and the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A beam only the intended receiver can pick up matters to those with secrets to keep, a narrow group.

Who is paid. Armed forces and space agencies pay for it, and since the method can be copied, the firms that already hold their radio contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Unlike the first television sets, this is a thinner form of a set people are assumed to have already, so the gain is a better screen, which is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

No prize. This is a forecast about how far television would spread, which is an event and not a thing anyone could buy.

Who is paid. Nothing is sold by the forecast itself; the sets and the broadcasts it speaks of are judged under their own names.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Seeing the person you talk to changes how families keep in touch and how firms meet.

Who is paid. Ordinary people buy it; the screens and cameras are easy to copy, so the firms that own the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A flawless singer with no live performer would change the costs of the whole music trade.

Who is paid. Listeners pay, many could run such software, and because only the voice is replaced and not the songs, those who own the songs collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A light-sensitive cell is one part inside a camera, not a product people seek out.

Who is paid. Equipment makers buy it and many firms can make such cells, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Carrying messages between ships and worlds would be a telegraph industry for a settled solar system, assuming there are many people out there to serve.

Who is paid. Assuming it needs great stations, ship owners and firms trading between worlds pay for the traffic, the link is ordinary radio that others could build, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A radio in a spacesuit is a needed part for the few people who work outside a ship.

Who is paid. Space agencies pay for it as part of the suit, and since it is an ordinary radio, the firms that already hold the suit contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Letting a scattered group meet by sound and picture saves firms a great deal of travel and is worth an industry.

Who is paid. Unlike a call between two people, a group meeting is mostly bought by firms for work, and as it is easy to copy, those that already own the networks and office software collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. Seeing distant events live at home changed how most people spend their evenings and learn the news.

Who is paid. Assuming the huge display stands for the home set and not a hall, households buy sets and pay for channels, and since sets are easy to copy, the firms that own the factories, the stations and the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Seeing the person you are talking to is something most people now use, and it is worth an industry.

Who is paid. Ordinary people pay for the device and the line, and since many can make the device, the firms that already own the phone networks and handset brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A picture with true depth standing in the room would replace the flat screen and be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Letting a scattered group meet by sound and picture saves firms a great deal of travel and is worth an industry.

Who is paid. Unlike a call between two people, a group meeting is mostly bought by firms for work, and as it is easy to copy, those that already own the networks and office software collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Assuming the planets are settled as in the story, a link between them carries all their trade and news.

Who is paid. Assuming it needs great stations, firms on each planet pay for the traffic, the beam is ordinary radio that others could build, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. The shared radio channels are what every ship and planet needs in order to talk, so the right to use them is worth an industry.

Who is paid. Ship operators and broadcasters pay for channels, and since users cannot share a channel a government hands out a limited number of rights, which those who hold them can charge for.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Feeling what happens on screen is an extra on top of the cinema people already have.

Who is paid. Audiences pay at the box office, the equipment can be copied, and the studios and cinema chains that own the films and the halls collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Getting the news at the moment and place you choose is a convenience over waiting for the paper.

Who is paid. Readers pay; the machine is easy to copy, so the news firms that already gather the reports collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Smells on cue add a novelty to shows and homes.

Who is paid. I assumed households and showmen buy it; once shown, many firms could make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. Seeing distant events live at home changed how most people spend their evenings and learn the news.

Who is paid. Households buy sets and pay for channels, and since sets are easy to copy, the firms that own the factories, the stations and the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A scope that sees much farther than glass alone serves astronomers and watchers, a narrow group.

Who is paid. I assume observatories and armed forces are the main buyers, and since others could build one, the firms that already supply such instruments collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A display with true depth seen from any side, working as the story promises and not as those built so far, would replace flat screens in homes and workplaces, which is an industry of its own.

Who is paid. Assuming it is sold as a general display and not only for ship plotting as in the story, households buy it and the existing screen makers, who own the factories and brands, collect because the design can be copied.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

No prize. This is a turn of the plot about how aliens talk, not a thing anyone could buy.

Who is paid. Nothing is made or sold.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Lessons that play without a live teacher would cut the cost of schooling and training.

Who is paid. Assuming families and learners buy the lessons themselves, and since a school subject belongs to nobody the way a novel or a song does and no certificate is described, anyone can record and sell lessons, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A pocket device for talking across great distances changes how most people live and work.

Who is paid. People buy one each, handsets are easy to copy, and the firms that own the networks the calls travel over collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A hidden radio that is swallowed serves a niche of secret work; a pill passes through, so it is not an everyday phone.

Who is paid. I assumed spies and soldiers use it, so a government pays its usual suppliers of such equipment.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Talking across the stars with no delay would be the backbone of trade and rule between worlds, judged as if it worked, though it serves only those who live or work out there.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. An artificial world that feels real would be worth an entertainment industry of its own; I judged the full promise, which is larger than anything sold so far.

Who is paid. Ordinary people buy it; the machine can be copied once shown, so those who already own the stories and worlds people want to enter collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Radio between people in spacesuits is essential to the few who work in such suits and of no use to anyone else.

Who is paid. Assuming the suits are worn by space crews, a government pays, and the firms that already supply suits and radios to such programmes collect because the radio is easy to copy.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Video calls between rooms or offices save some walking and some meetings.

Who is paid. Firms buy it for their offices, a screen and camera can be copied, and the electronics firms with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A huge thin screen showing live pictures is the big screen of halls, stadiums and public squares, an industry of its own.

Who is paid. Because this one faces an audience, venues and not households buy it, the design can be copied, and the electronics firms with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A large thin screen is the screen at the centre of most homes and offices, an industry of its own, and turning see-through is a feature of it.

Who is paid. Assuming it hangs in homes as well as shops and offices, people buy it, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. Judged on the promise of a phone worn on the wrist as the phone people carry everywhere, which changes how most people live and work, though the real ones arrived after the pocket phone and stayed an extra.

Who is paid. People buy one each, a wrist set is as easy to copy as a pocket handset, and the firms that own the networks the calls travel over collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. One even voice blended from many is a tool for announcements, smaller than making whole songs by machine.

Who is paid. Broadcasters and firms buy it and many could make it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A fixed loudspeaker system for speaking to people in public places is an ordinary piece of public equipment.

Who is paid. The authorities pay to install it in streets and squares, and since it is easy to make, the firms that already hold such supply contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Sending spoken orders only to chosen listeners is a command tool for fleets and forces, a narrow use.

Who is paid. I assume armed forces are the buyers, and since the method can be copied, the firms that already hold their radio contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Silencing advertisements is a pleasant convenience for viewers and nothing more.

Who is paid. Viewers buy the gadget and it is easy for any electronics firm to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Assuming people live across vast distances, printed messages that cross them at once would be the backbone of trade and rule, an industry of its own.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A small ear device for coded radio messages is a convenience for those who need private messages.

Who is paid. People buy it for themselves and tiny ear radios are simple for many firms to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Screens worn just in front of the eyes, working as promised, would take over much of what people now do on handheld screens.

Who is paid. People buy them for themselves, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Calling up a live view of any place would be worth an industry for travel, news and watching over things.

Who is paid. Assuming households buy the viewer and it needs no network of cameras that a single firm owns, others could build it once it is known to work, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A thin screen for the wall is the form nearly every display now takes and is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Any book in your hands almost at once would change what libraries and bookshops cost to run.

Who is paid. Assuming readers pay by fee or subscription, the delivery machinery can be copied, so the publishers who own the right to the books collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A sign in the sky is one more place to advertise, seen by those beneath it.

Who is paid. Advertisers pay, and assuming the sky stays open to whoever can put a sign there, as with messages thrown on the clouds, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Portable recording and sending kit is a useful tool for one trade.

Who is paid. News firms buy it and many makers can build such kit, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Getting the news at the moment and place you choose is a convenience over waiting for the paper.

Who is paid. Readers pay; the machine is easy to copy, so the news firms that already gather the reports collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Taking photographs with depth is a pleasure for hobbyists and a tool for a few trades.

Who is paid. Keen photographers buy it, and since many can make such a camera, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Writing down incoming radio calls by machine saves a clerk in a control room, which is a narrow saving.

Who is paid. Ship and rescue operators buy it, and since many can make such a recorder, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Talking across the stars with no delay would be the backbone of trade and rule between worlds, judged as if it worked, though it serves only those who live or work out there.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Talking across the stars with no delay would be the backbone of trade and rule between worlds, judged as if it worked, though it serves only those who live or work out there.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A screen in your glasses, working as promised, would take over much of what people now do on handheld screens.

Who is paid. People buy them for themselves, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A mouthpiece that keeps a call private and cuts room noise is a minor convenience.

Who is paid. Callers buy it as an add-on and it is a simple shaped part anyone can make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. A phone carried everywhere changes how most people live and work.

Who is paid. Ordinary people buy it; handsets are easy to copy, so the firms that own the networks and airwaves collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Sound aimed at one listener is useful in shops, museums and cars but few people need it.

Who is paid. Shops and exhibit makers buy it, and since many can make such a speaker, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Machines that speak like people let firms answer calls, read text aloud and voice their products without hiring speakers.

Who is paid. Firms buy it to build into their own products and services, and since many can make a talking machine, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A loud, harsh horn is one more musical instrument for the few who want it.

Who is paid. Players buy it, and since any instrument maker could build one, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Machines that speak like people let firms answer calls, read text aloud and voice their products without hiring speakers.

Who is paid. Firms buy it to build into their own products and services, and since many can make a talking machine, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Hearing through the skull bones suits a few uses, here a hidden earpiece, but for most it is one more kind of earphone.

Who is paid. People buy it for themselves and the vibrating part is simple to make, so many firms sell it and none keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A news receiver in every home is the home end of broadcasting, which is an industry of its own.

Who is paid. Unlike the broadcasting itself, this is the set in the home, which households buy and many firms can make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A signal that says which craft is which is a safety fitting, needed but minor.

Who is paid. Craft operators buy it because rules require it, and it is a simple radio many firms make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A home receiver that picks out the reports its owner cares about is the home end of broadcasting, which is an industry of its own.

Who is paid. Unlike a tailored news service, this is the set in the home, which households buy and many firms can make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Songs written and played with no human performers remove the main cost of the music trade.

Who is paid. Listeners pay, and unlike a machine voice singing songs someone owns, once machines can write the songs as well anyone can run them, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A thin screen for the wall is the form nearly every display now takes and is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Assuming the planets are settled as in the story, a message link among them carries all their trade and news, an industry of its own.

Who is paid. Assuming firms and settlers pay by the message, nothing described stops a rival from building its own stations, so the carriers and fleet owners who already hold the home networks where every message starts and ends, and the ships to place and tend stations, collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Short summaries that open into the full story are a handier way to read the news people already get.

Who is paid. Readers pay, the layout is easy to copy, and the news firms that already gather the reports collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Carrying messages between ships and worlds would be a telegraph industry for a settled solar system, assuming there are many people out there to serve.

Who is paid. Assuming it needs great stations, ship owners and firms trading between worlds pay for the traffic, the link is ordinary radio that others could build, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A hub that passes messages among the planets would be the telegraph exchange of a settled solar system, assuming many people live out there.

Who is paid. Firms trading between worlds pay by the message, the description does not say the spot is the only one that would serve, so a rival hub could be built, and the carriers and fleet owners who already hold the home networks and the ships to tend a station collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A magazine in moving pictures is one more form of entertainment among many.

Who is paid. Viewers buy or subscribe, anyone can film one, and the publishers who already have the readers and the names collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Assuming it is an electronic reader and not merely a very small printed book, it changes what it costs to publish, ship and store books.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A device that wipes out projected images is a niche tool against trickery.

Who is paid. I assumed police and armies want it, so a government pays its usual equipment suppliers.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Sending a lifelike solid picture of a person or place far away would be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households pay for the sets and the service, and as the projector could be copied, the firms that already own the networks and factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Sending a lifelike solid picture of a person or place far away would be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households pay for the sets and the service, and as the projector could be copied, the firms that already own the networks and factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. One odd arrangement of screens round a many-sided centre is a control-room fitting, not a new kind of thing.

Who is paid. Operators of ships or control rooms buy it, and since it is only ordinary screens set in a frame, the firms that already own the screen factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A radio in a spacesuit is a needed part for the few people who work outside a ship.

Who is paid. Space agencies pay for it as part of the suit, and since it is an ordinary radio, the firms that already hold the suit contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Controls woven into a cuff are a convenience.

Who is paid. Ordinary people buy it and any clothing or gadget maker could add them, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A thin screen for the wall is the form nearly every display now takes and is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A new way to send one message to many receivers at once is a broadcasting industry of its own.

Who is paid. Advertisers and news firms pay to reach the crowd, the description names no scarce channels and others could copy the method, so the firms that already own the audiences, the programmes and the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A phone carried everywhere changes how most people live and work.

Who is paid. Ordinary people buy it; handsets are easy to copy, so the firms that own the networks and airwaves collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A picture with true depth standing in the room would replace the flat screen and be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Sending messages straight from mind to mind over long range, judged as if it worked, would be a new kind of phone service worth an industry.

Who is paid. I assume ordinary people would pay for it like a phone, and once one sender had been built others could copy it, so the firms that already own the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Aircraft that relay television fill gaps where towers do not reach, which is a narrow job.

Who is paid. Broadcasters pay for the relay, and since any operator with aircraft could do it, the firms that already own fleets and stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A radio by the ear is a convenience on top of the phone a person already has.

Who is paid. People buy it for themselves and, even though this one is implanted, tiny ear radios are simple for many firms to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. An eye-catching printing trick is a small edge for an advert.

Who is paid. Advertisers pay and any printer can do it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Smells on cue add a novelty to shows and homes.

Who is paid. I assumed households and showmen buy it; once shown, many firms could make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Reading on a screen instead of paper changes what it costs to publish and carry books.

Who is paid. Readers pay for each book, and since any screen can show text, the publishers and shops that already hold the books readers want collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Broadcasts with real depth would be the next kind of television set and worth an industry, though the real thing has so far sold poorly against the promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Talking across the stars with no delay would be the backbone of trade and rule between worlds, judged as if it worked, though it serves only those who live or work out there.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Advertisements on aircraft windows are one more place to show commercials to a captive audience.

Who is paid. Advertisers pay, the screens are easy to make, and the airlines that own the planes and the passengers' attention collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Advertising that truly made people crave a product would be worth a great deal to every seller of goods.

Who is paid. Advertisers pay, and once the trick is known any agency could use it, so no seller keeps much, though a government might well forbid it.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. An eye-catching printing trick is a small edge for an advert.

Who is paid. Advertisers pay and any printer can do it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A personal screen for watching films and pictures anywhere is worth an industry of its own.

Who is paid. Ordinary people buy it; many firms can make the device, so those who already own the films and the ways to deliver them collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Books kept in electronic form instead of on paper change what it costs to publish, ship and store them.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Adverts thrown into people's path are one more way to advertise, not a new need.

Who is paid. Advertisers pay, the projector is easy to copy and it can be aimed at anyone passing, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Tags that play sales pitches from the shelf are one more way to advertise.

Who is paid. Brands pay to tag their own goods, and since the tag is the thing sold and any electronics workshop could make it, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A screen for watching and directing things is an ordinary piece of working equipment.

Who is paid. Organisations buy such screens for their control rooms, the design can be copied, and the electronics firms with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A radio in the ear for talking and listening is a convenience on top of the phone a person already has.

Who is paid. People buy it for themselves and tiny ear radios are simple for many firms to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. News gathered, written and published with no human staff removes the main cost of the news trade.

Who is paid. Readers buy or subscribe, and once machines can gather and write the news anyone can run one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Commercials spoken by the goods themselves are another place to advertise, like talking tags on shop goods.

Who is paid. Advertisers pay, and although the story has a single firm running it, nothing described stops a rival, and the speaking part is simple for any workshop to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

No prize. A living tree on an alien world is a natural thing, not a product.

Who is paid. Nothing is sold, so nobody pays and no seller keeps anything.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A handheld model of the galaxy in depth serves a single purpose for navigators and teachers, unlike a general display with depth.

Who is paid. Assuming ships and schools buy it, the design can be copied, and the display makers with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Calling up a live view of any place would be worth an industry for travel, news and watching over things.

Who is paid. Assuming households buy the viewer and it needs no network of cameras that a single firm owns, others could build it once it is known to work, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A sign in the sky is one more place to advertise, seen by those beneath it.

Who is paid. Advertisers pay, and assuming the sky stays open to whoever can put a sign there, as with messages thrown on the clouds, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A phone carried everywhere changes how most people live and work.

Who is paid. Ordinary people buy it; handsets are easy to copy, so the firms that own the networks and airwaves collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Sound fed straight into the ear is a convenience over an ordinary radio or speaker.

Who is paid. Ordinary people buy it and many firms can make tiny ear pieces, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A language that lets its speakers trade ideas faster helps only the few who take the trouble to learn it.

Who is paid. Assuming learners pay to be taught it, as an army would pay for a battle language, a language cannot be owned and any teacher could offer it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Hearing a host say your name is a pleasing trick added to a set people already own.

Who is paid. Viewers buy the gadget for themselves, and since it is a simple add-on many could make, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A concert played by machines is a show some people would pay to hear, one kind among many.

Who is paid. Concert-goers buy tickets, and since anyone with the machines could stage such a show, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Presenting is a trade whose work is sold, a step below the broadcasts it serves.

Who is paid. Broadcasters pay presenters for their labour, and anyone with the knack can offer it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Letting machines pass messages straight to each other lets factories and services run with far less human relaying.

Who is paid. Firms buy it built into their machines, and since a shared channel only works if every maker can use it, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. A pocket unit that links its holder to everyone else on the network changes how most people live and work.

Who is paid. Assuming it is a pocket phone and the power to call parts of the network into being is a feature of it, people buy one each, handsets are easy to copy, and the firms that own the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Advertising that reaches straight into a viewer's mind would be worth a great deal to every seller of goods, though the story's law forbids it.

Who is paid. Advertisers who ignore the ban pay, and once the trick is known any agency could use it and the law pursues whoever does, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A shared network that lets anyone reach knowledge and one another from anywhere changes how most people live and work.

Who is paid. Ordinary people pay for access, and since no one firm can keep others off an open network, the firms that already own the lines and the big gathering places on it collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A screen in the dashboard is a feature of a car.

Who is paid. Drivers pay for it as part of the car, any maker can fit one, and the car makers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Getting the news at the moment and place you choose is a convenience over waiting for the paper.

Who is paid. Readers pay; the machine is easy to copy, so the news firms that already gather the reports collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A phone inside the body that is never lost or left behind would be worth an industry, though surgery would put many people off.

Who is paid. People buy it for themselves, the device can be copied, and the firms that own the phone networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A phone carried everywhere changes how most people live and work.

Who is paid. Ordinary people buy it; handsets are easy to copy, so the firms that own the networks and airwaves collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. A shared network that lets anyone reach knowledge and one another from anywhere changes how most people live and work.

Who is paid. Ordinary people pay for access, and since no one firm can keep others off an open network, the firms that already own the lines and the big gathering places on it collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A secure booth for solid-looking calls is a niche for officials and firms with secrets.

Who is paid. I assumed firms and offices buy it; it can be copied, so the firms that own the phone networks collect, as with other picture calls.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. An artificial world that feels real would be worth an entertainment industry of its own; I judged the full promise, which is larger than anything sold so far.

Who is paid. Ordinary people buy it; the machine can be copied once shown, so those who already own the stories and worlds people want to enter collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A picture with true depth standing in the room would replace the flat screen and be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

No prize. A chance quirk of a prison's walls that lets inmates whisper to each other is not a product anyone sells.

Who is paid. Nothing is sold, so there is no payer and no seller.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Assuming people live around many stars, instant messages between them would be the backbone of all trade and rule across space, an industry of its own.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A sign on the Moon is still a single place to show an advertisement, though it is the most widely seen of all.

Who is paid. Advertisers pay, and unlike the open sky there is only the Moon's face to write on, so assuming governments share it out, the few allowed to mark it can charge for it.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A big thin panel on the wall is the screen at the centre of most homes and offices, an industry of its own.

Who is paid. Assuming it hangs in homes as well as offices, people buy it, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Keeping a call private matters to a narrow set of users with secrets worth guarding.

Who is paid. Firms with secrets buy it, and since the method of garbling speech is well known and easy to copy, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A note that speaks its contents is a novelty for offices.

Who is paid. I assumed offices buy it; many firms could make it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A lit dome that shows maps is a piece of planning equipment for a few users.

Who is paid. Assuming it is used by military staff as in the story, a government pays, and the firms that already supply armies with such equipment collect because it is easy to copy.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A metal surface that forms words on itself is a sign or noticeboard of an unusual kind.

Who is paid. Offices would buy it as a display, and ordinary screens that many firms make do the same job, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Entertainment that fills every sense would be a new industry beside cinema and games.

Who is paid. Assuming people pay at the door of a venue, others could build such centres once one existed, so the entertainment firms that own the stories and the sites collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A shop for digital books changes what it costs to publish, ship and store books.

Who is paid. Readers buy the books, anyone could open such a shop, and the publishers who own the right to the books collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A touch-sensitive paper map is a handy travel aid.

Who is paid. Travellers buy it, the touch-sensitive pages are thin screens that can be copied, and the display makers with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A handheld screen holding many books or the day's paper is worth an industry and cuts the cost of printing and delivery.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Portable recording and sending kit is a useful tool for one trade.

Who is paid. News firms buy it and many makers can build such kit, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Broadcasts with real depth would be the next kind of television set and worth an industry, though the real thing has so far sold poorly against the promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Broadcasts with real depth would be the next kind of television set and worth an industry, though the real thing has so far sold poorly against the promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. News printed at home is a convenience over a paper brought to the door.

Who is paid. Readers pay for the service, and since the printer is easy to make, the news firms that already have the reporters and readers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A camera that sends pictures straight to the newsroom saves the press some hours, a narrow gain.

Who is paid. News firms buy it, and since many can make such a camera, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Calls paid for by listening to advertisements save callers a little money.

Who is paid. Advertisers pay in place of the callers, any phone firm could offer it, and the firms that own the phone networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A light-hearted news show is one more programme among many.

Who is paid. I assumed viewers pay; anyone can present a show, so the broadcasters who already hold the channels collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A pretend shooting gallery is a niche amusement.

Who is paid. Players pay and many firms can build one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Signs that truly made passers-by buy without knowing why would change what sellers spend to win customers.

Who is paid. Firms with goods to sell pay for the space, and since the hidden message is easy to copy, the owners of the roadside sites collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Changing what politicians appear to say on your own set is a toy, and a troubling one, not a need.

Who is paid. Viewers would buy it as a novelty feature and any set maker could add it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A sound recorder made of living tissue does the same job as any other recorder, so it is a curiosity.

Who is paid. People would buy it as a recorder like any other, and ordinary recorders that many firms make hold its price down, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A tiny flying machine that pesters people with advertisements is one more way to advertise, and an unwelcome one.

Who is paid. Advertisers pay, and once such fliers exist anyone can send them out, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A projected sign on a door is decoration, unlike a full display with depth.

Who is paid. Shops and offices buy it as signage and many sign makers could supply it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A link you tap for more detail is a handy feature inside documents, not a product on its own.

Who is paid. Firms that make reading software build it in, and since anyone can add such a link, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A comic whose pages move is a novelty for readers.

Who is paid. Readers buy it, the moving page is easy to copy, and the publishers who own the popular characters collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A spoken code for one army is useful to that army alone.

Who is paid. A government pays to have it devised and taught, and a language cannot be owned and any group of linguists could make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A network open to everyone for sharing information changes how most people work, shop and talk.

Who is paid. Households pay for a connection, the method is open for anyone to use, and the firms that own the wires and masts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Hiding a message in a bat or bird is a tool for spies and smugglers.

Who is paid. Assuming spy services are the buyers, a government pays, the story treats it as a common device others could make, and the firms that already supply such services collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A lifelike moving portrait is a keepsake.

Who is paid. Families buy it, and anyone with the equipment could make such portraits, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A very small, light book matters only where every bit of weight counts.

Who is paid. Unlike an electronic book, this is still a printed book on thin material, which travellers buy and any printer could make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Books and film kept in one compact form change what it costs to publish, ship and store them.

Who is paid. Readers buy them, the storage medium is easy to copy, and the publishers who own the right to the contents collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Talking from car to car is a convenience for drivers.

Who is paid. Drivers buy it with the car, and it is easy to copy, so the established carmakers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A compact way to carry a message or recording is a niche tool.

Who is paid. I assumed firms and officials buy it; many makers could produce it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A compact way to carry a message or recording is a niche tool.

Who is paid. I assumed firms and officials buy it; many makers could produce it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Seeing yourself in different outfits on a screen is a sales aid for clothes shops.

Who is paid. Shops buy it, a screen and camera can be copied, and the electronics firms with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A compact way to carry a message or recording is a niche tool.

Who is paid. I assumed firms and officials buy it; many makers could produce it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A picture with true depth standing in the room would replace the flat screen and be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Assuming people live around many stars, instant messages between them would be the backbone of all trade and rule across space, an industry of its own.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Showing a personal device on a big shared screen is a handy feature.

Who is paid. It comes as a feature of devices people already buy and any maker can add it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A stored list of callers is a handy feature of a phone.

Who is paid. It comes as a feature of phones people already buy and any maker can add it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Spoken messages kept for later are a handy feature of phone service.

Who is paid. Callers pay for it as part of their phone service, it is easy to copy, and the firms that own the phone networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A short name that stands for a full identity and number is a convenience.

Who is paid. Phone users pay; the idea is easy to copy, so the network firms that already hold the directory collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Feeling a far-off partner's touch is a novelty for couples who are apart.

Who is paid. Couples would buy it for themselves, and since many could make such a gadget, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Stepping into a simulated scene with no headset would be a new form of entertainment worth an industry; the real thing so far is smaller than this promise.

Who is paid. Households pay for the equipment and the scenes, and since the projector could be copied, the firms that already own the studios and electronics factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Simulated games played for fun are one of the biggest forms of entertainment.

Who is paid. Players buy the games, and since the idea is open to all, the studios that already own popular titles and the machines they run on collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Speaking to a phone instead of pressing keys is a convenience added to something people already own.

Who is paid. It comes as a feature of phones people already buy and any maker can add it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Speaking to a phone instead of pressing keys is a convenience added to something people already own.

Who is paid. Spoken control comes as a feature of phones people already buy and any maker can add it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A handheld screen holding many books or the day's paper is worth an industry and cuts the cost of printing and delivery.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A handheld screen holding many books or the day's paper is worth an industry and cuts the cost of printing and delivery.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A picture with true depth standing in the room would replace the flat screen and be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Assuming it only records a world's history and does not foretell it, a chronicle that keeps itself up to date is a reference work for the curious.

Who is paid. Assuming readers buy copies, there is only this chronicle and only its keepers can write it, so they keep what readers pay.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. News put together with no human editors removes the main cost of the news trade.

Who is paid. Assuming a machine readers buy or subscribe to, once machines can write the news anyone can run one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. News sorted to each reader's interests changes how the news trade reaches people.

Who is paid. Readers pay by subscription; the sorting is easy to copy, so those who already hold the reporting and the audience collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

No prize. This is a creature's nature or a state of mind, not something made and sold.

Who is paid. Nothing is sold, so nobody pays and no seller keeps anything.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A thin screen for the wall is the form nearly every display now takes and is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A picture with true depth standing in the room would replace the flat screen and be worth an industry of its own; the real thing so far is smaller than this promise.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. The word stands for pictures with true depth, which would replace flat screens in homes and workplaces.

Who is paid. Judging the display the word names, households buy it, the design can be copied, and the existing screen makers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Sound fed straight into the ear is a convenience over an ordinary radio or speaker.

Who is paid. Ordinary people buy it and many firms can make tiny ear pieces, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. One great spire for calling beyond the solar system is a single act of curiosity with no customers waiting for the service.

Who is paid. I assume a state would pay for it as a science project, as nobody could be charged for its use, and the big builders that already win such works would be paid.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Being understood in any language while wearing a small disc removes a barrier to travel and trade for a great many people.

Who is paid. Travellers and traders buy it, and once one firm had made a good translator others could too, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Unlike a personal film player, a projector in the pocket is an accessory for showing pictures to a group.

Who is paid. Ordinary people buy it and many firms can make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A phone inside the body that is never lost or left behind would be worth an industry, though surgery would put many people off.

Who is paid. People buy it for themselves, the device can be copied, and the firms that own the phone networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Portable recording and sending kit is a useful tool for one trade.

Who is paid. News firms buy it and many makers can build such kit, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Paper that sends pen strokes to a distant computer is a handy way to enter notes, not a need.

Who is paid. Offices buy it, and since many can make such sheets, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. An artwork made of light is a luxury for collectors.

Who is paid. Collectors buy it; I assumed the method is open to any artist, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A networked intimacy service that people cannot put down would draw spending on the scale of an industry.

Who is paid. Users pay; I assumed it stays legal and can be copied, so the firms that own the phone network it runs on collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A phone carried everywhere changes how most people live and work.

Who is paid. Ordinary people buy it; handsets are easy to copy, so the firms that own the networks and airwaves collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Appearing lifelike in a far place would replace much travel for meetings.

Who is paid. I assumed firms pay to save travel; once shown it can be copied, so the firms that own the networks carrying the image collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Adverts thrown into people's path are one more way to advertise, not a new need.

Who is paid. Advertisers pay, the projector is easy to copy and nobody owns the open air it shines into, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Print that speaks is a handy extra on a book or a leaflet, not something people need.

Who is paid. Publishers and makers of goods pay to add it, and since the chip is cheap and simple to copy, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. A network linking information across a whole country changes how most people work, shop and talk.

Who is paid. Households pay for a connection, the method is open for anyone to use, and the firms that own the wires and masts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A line where someone simply listens comforts callers in need and is not a large trade.

Who is paid. Assuming callers pay a little or give to keep it running, anyone with patient listeners and a phone line can offer it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Letting some traffic jump the queue changes what network owners can charge the firms that depend on them.

Who is paid. Firms that need fast delivery pay for the faster lane, and only those who already own the lines can sell it, so they collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. A small device for talking to anyone at a distance changes how most people live and work.

Who is paid. People buy one each, handsets are easy to copy, and the firms that own the networks the calls travel over collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A television as thin as a poster is the wall screen of the home, an industry of its own.

Who is paid. Ordinary people buy it inside the things they own; once shown it can be copied, so the firms with the big screen factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Talking across the stars with no delay would be the backbone of trade and rule between worlds, judged as if it worked, though it serves only those who live or work out there.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

No prize. This is contact with a strange being that happens to people, not a device anyone could make and sell.

Who is paid. Nothing is made or sold.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Images on a cloud of spray are one more way to catch the eye for an advertisement.

Who is paid. Advertisers pay, and a sprayer and a projector are easy for anyone to set up, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A room-sized picture with depth that you can step into would replace flat screens for home entertainment.

Who is paid. Assuming it is fitted in homes, households buy it, the design can be copied, and the existing screen makers, who own the factories and brands, collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Advertising on a curtain of vapour is one more way to catch the eye.

Who is paid. Advertisers pay, and a sprayer and a projector are easy for anyone to set up, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A handheld tablet showing pictures with true depth, working as the story promises and not as those built so far, would replace flat screens on personal devices.

Who is paid. Households buy it, the design can be copied, and the existing screen makers, who own the factories and brands, collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. News sorted to each reader's interests changes how the news trade reaches people.

Who is paid. Readers pay by subscription; the sorting is easy to copy, so those who already hold the reporting and the audience collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Understanding any spoken language at once would remove a cost from travel, trade and every job done across borders.

Who is paid. People buy one each, and since it is a creature that breeds, anyone can raise and sell them, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A handheld electronic book changes what it costs to publish, ship and store books.

Who is paid. Readers buy the device and the books, the device is easy to copy, and the publishers who own the right to the contents collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A wrist screen showing pictures from watchers overhead is a tool for those who do the watching.

Who is paid. Unlike the other wrist devices, this one serves surveillance, so police and armed forces pay and the firms that already hold their contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A device for passing hidden messages serves the few who need secrecy.

Who is paid. The description gives little, so assuming firms and officials with secrets buy it, ways of hiding messages are widely known and many could make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Feeling a far-off partner's touch is a novelty for couples who are apart.

Who is paid. Couples would buy it for themselves, and since many could make such a gadget, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A flying video billboard is one more place to show advertisements.

Who is paid. Advertisers pay for the space, and anyone can fly a blimp with screens over a city, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Knowing that your home phone is ringing while you are out is a minor convenience.

Who is paid. People buy the gadget for themselves and it is simple to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A cape that picks up and amplifies the voice is a niche piece of kit for those who address crowds.

Who is paid. Assuming speakers and the organisations they work for buy it, it is a microphone and speaker sewn into cloth that anyone could make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Video across a whole building is one more place to show advertisements.

Who is paid. Advertisers pay, the screens are easy to make, and the owners of tall buildings in busy places collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A carried camera linking a travelling official to headquarters is a tool for a few people.

Who is paid. The official's government pays, portable video cameras are easy to copy, and the firms that already supply governments with such equipment collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A fresh number for every call serves the few who want not to be traced.

Who is paid. People who want privacy pay for it, and it is software many could write, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Silencing advertisements is a pleasant convenience for viewers and nothing more.

Who is paid. Viewers buy the gadget and it is easy for any electronics firm to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A tiny speaker inside the ear is a convenience for listening in private.

Who is paid. People buy it for themselves and tiny ear speakers are simple for many firms to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Pictures felt through the skin would help people who cannot see and be a novelty for others.

Who is paid. Assuming people buy it for themselves, it needs no rare part and many firms could make it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A performer whose movements become music is a stage act for those who like the show.

Who is paid. Audiences buy tickets, and since any performer could fit the same hardware, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A tabletop display with true depth, working as the story promises and not as those built so far, would replace flat screens in homes and workplaces, which is an industry of its own.

Who is paid. Households buy it, the design can be copied, and the existing screen makers, who own the factories and brands, collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A fold-out screen is an add-on part; the picture call itself is the larger prize.

Who is paid. Phone owners buy it, a thin folding screen can be copied, and the display makers with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A helper in the ear that answers questions and reaches the network is far more than a radio and worth an industry.

Who is paid. Ordinary people buy it; the ear piece is easy to copy, so the firms that already run the helper and the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Sending shows over a computer network is how most broadcasts now reach people and is an industry of its own.

Who is paid. Viewers pay a fee or sit through adverts, and since the sending is easy to copy, the firms that already own the shows and the networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Books kept in a compact form instead of on paper change what it costs to publish, ship and store them.

Who is paid. Readers buy the books, the storage medium is easy to copy, and the publishers who own the right to the books collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Music kept and played as computer data changes what it costs to record, copy and deliver it.

Who is paid. Listeners pay for the music, the method is open to all, and the labels and artists who own the songs collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A handheld screen holding many books or the day's paper is worth an industry and cuts the cost of printing and delivery.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. The ordinary printed book, a curiosity in the story, is in fact worth an industry of its own.

Who is paid. Readers buy the books, anyone can run a press, and the publishers who own the right to the books collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Unlike a display with depth for the home, a carryable unit that casts pictures into the air is a tool for shows and displays.

Who is paid. I assumed showmen and firms buy it; many could make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Eyewear whose optics let the wearer see all around is an aid for a few tasks, not a screen for everyday use.

Who is paid. Unlike eyewear that shows video, this only widens the view, so I assume a few people buy it for themselves, and since many can make one, the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Screens built into glasses, working as promised, would take over much of what people now do on handheld screens.

Who is paid. People buy them for themselves, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Printing what a video phone shows is a small extra for the few times a paper copy is wanted.

Who is paid. Ordinary people buy it, and since it is just a printer on a phone, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. Judged on the promise of a phone worn on the wrist as the phone people carry everywhere, which changes how most people live and work, though the real ones arrived after the pocket phone and stayed an extra.

Who is paid. People buy one each, a wrist set is as easy to copy as a pocket handset, and the firms that own the networks the calls travel over collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Assuming people live around many stars, instant messages between them would be the backbone of all trade and rule across space, an industry of its own.

Who is paid. Assuming it needs great stations and not a pocket set, firms and governments with far-flung operations pay for the traffic, others could build the device once it is known to work, and the carriers whose networks feed the stations collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. The ordinary photograph, quaint in the story, is in fact worth an industry of its own.

Who is paid. People pay for cameras and prints, and many firms can make them, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. A shared network that lets anyone reach knowledge and one another from anywhere changes how most people live and work.

Who is paid. Ordinary people pay for access, and since no one firm can keep others off an open network, the firms that already own the lines and the big gathering places on it collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A vast prize. Judged on the promise of a phone worn on the wrist as the phone people carry everywhere, which changes how most people live and work, though the real ones arrived after the pocket phone and stayed an extra.

Who is paid. People buy one each, a wrist set is as easy to copy as a pocket handset, and the firms that own the networks the calls travel over collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

No prize. Ordinary people reporting the news themselves is a habit, not a product, and they do it without charge.

Who is paid. Nothing is sold, since the phones and the web it relies on are judged separately.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A score that reliably told readers what to trust online would reshape news and publishing.

Who is paid. Assuming sites and publishers pay to carry the score, the scorer that readers have come to trust is hard to copy because trust takes long to earn.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Sending a document to everyone in a room at once saves a little time.

Who is paid. It comes as a feature of devices firms already buy and any maker can add it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A thin screen grown like a leaf could replace much printing and most rigid screens.

Who is paid. People buy the panels for their homes, and since living stock multiplies once any of it is sold, no originator can hold it, so the growers and screen sellers that already hold stock and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A handheld screen holding many books or the day's paper is worth an industry and cuts the cost of printing and delivery.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Eyewear that films what the wearer sees is a camera worn on the face, a gadget some people would enjoy.

Who is paid. Unlike eyewear that shows pictures, this only records, so I assume it stays an extra that ordinary people buy, and since many can make one, the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. The ordinary flat film, quaint in the story, is in fact worth an industry of its own.

Who is paid. Audiences pay to watch, anyone can run a projector, and the studios that own the films collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A figure that stands for you in a virtual world is a feature of that world, bought mostly for looks.

Who is paid. Users pay for their figures and extras, any world could offer them, and the firms that already run the popular worlds collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Lenses that lay pictures over what you see, working as promised, would take over much of what people now do on handheld screens.

Who is paid. People buy them for themselves, the design is harder than glasses but can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A calling card swapped inside a virtual world is a minor feature of that world.

Who is paid. It comes as a feature of software people already use and any developer can add it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A shared online world where people meet would be worth an industry; I judged the promise, which is larger than what was built.

Who is paid. Ordinary people pay; the software can be copied but the crowd already inside cannot, so the first world to fill up keeps most.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A gossip paper read on a tablet is one more title among many.

Who is paid. Readers pay; anyone can publish gossip, so the publishers who already have the readers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A picture floating over a car bonnet is decoration, unlike a full display with depth.

Who is paid. Car owners buy it as an ornament and many accessory makers could supply it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A floor that copies virtual ground is an add-on for people who already play in virtual worlds.

Who is paid. Assuming a home unit, players buy it, and it is a mechanical floor many firms could build, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A cot that shows a baby simulated worlds is a luxury for some parents, not a need.

Who is paid. Parents buy it, and I assume it is a home product many firms could make once one had, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Sounding like someone else is a toy and a tool for performers and pranksters.

Who is paid. Ordinary people buy it, and since many can make a voice changer, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Reliving another person's recorded senses would be a new mass entertainment to rival film.

Who is paid. Audiences pay for each show, and once the recording method was known others could use it, so the studios that already own stars and stories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Moving signs that stand in for text help those who cannot read, a narrow use once judged as the work of devising and drawing them.

Who is paid. Assuming publishers and sign makers pay designers to draw the signs, as an army would pay for a battle language, a way of writing cannot be owned and any designer could offer it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A screen as thin and bendable as paper could replace much printing and most rigid screens.

Who is paid. Ordinary people buy it inside the things they own; once shown it can be copied, so the firms with the big screen factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Information laid over what you see would change many jobs and daily errands; I judged the promise, which is larger than what has been sold.

Who is paid. Ordinary people buy it; the glasses can be copied, so the firms that already hold the software and the information shown collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Sound fed straight into the ear is a convenience over an ordinary radio or speaker.

Who is paid. Ordinary people buy it and many firms can make tiny ear pieces, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A handheld screen holding many books or the day's paper is worth an industry and cuts the cost of printing and delivery.

Who is paid. Ordinary people buy it; the device is easy to copy, so the publishers and shops that already own the books and papers collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A screen as thin and bendable as paper could replace much printing and most rigid screens.

Who is paid. Ordinary people buy it inside the things they own; once shown it can be copied, so the firms with the big screen factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. Goggles that put pictures straight onto the eyes, working as promised, would take over much of what people now do on handheld screens.

Who is paid. People buy them for themselves, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A made-up star who performs and answers fans as if real could carry a whole entertainment business.

Who is paid. Fans pay for the music, the shows and the goods, and though one character can be owned, any studio could make a star of its own, so the studios and labels that already own the stages and the audiences collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Knowing where every soldier is and being able to reach them from orbit changes how an army fights.

Who is paid. The armed forces pay, and since several firms could build the handsets and satellites, those that already hold defence contracts collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A box showing broadcasts as solid scenes, working as the story promises and not as those built so far, would replace flat screens in homes, which is an industry of its own.

Who is paid. Households buy it, the design can be copied, and the existing screen makers, who own the factories and brands, collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Video that anyone can publish and anyone can watch is a new entertainment industry.

Who is paid. Advertisers pay to reach the viewers, and the site where the makers and the audience have already gathered is hard to copy because each side goes where the other is.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A bar that pairs up its patrons is a niche amusement.

Who is paid. Patrons pay and any bar could install such machines, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A display of live views from other shops is a decoration for a store.

Who is paid. Shop chains buy it, a screen and a camera link can be copied, and the electronics firms with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A suit that records movement is a tool for film and game makers.

Who is paid. Studios buy it and many firms can make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A thin screen for the wall is the form nearly every display now takes and is an industry of its own.

Who is paid. Households buy the sets, and since any electronics factory could copy the design, the firms that already own the factories, brands and shops collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A bendable sheet that shows updating news is a nicer way to read what a handheld screen already shows.

Who is paid. Readers buy it, the sheet can be copied, and the display makers with the factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A picture with depth that you can step into, here used for family recordings, would replace flat screens for home viewing.

Who is paid. Households buy it, the design can be copied, and the existing screen makers, who own the factories and brands, collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A vast prize. A worldwide network linking every person and machine changes how most people live and work.

Who is paid. Ordinary people and firms pay for access; the methods are open, so those who own the cables and exchanges collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Unlike a plain sign, a display that knows each passer-by and pitches to them personally would change what public advertising is worth.

Who is paid. Advertisers pay; the screens are easy to copy, so those who already hold the sites and the records about people collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A throwaway sheet that shows a message is a convenience where paper or a screen would also do.

Who is paid. Unlike a lasting electronic newspaper, this is cheap and disposable by design, so many firms make it and none keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A picture with depth on a cover is decoration, unlike a full display with depth.

Who is paid. Publishers and packagers would buy it to dress up a cover, and once thin electronic paper exists many printers could supply it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A chip that makes a book pitch itself from the shelf is one more way to advertise.

Who is paid. Publishers pay to put the chip in their own books, and since the chip is the thing sold and is cheap and simple to copy, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A tiny camera that follows and films you is a gadget for hobbyists and people who film themselves.

Who is paid. People buy it for themselves and many electronics firms could make small flying cameras, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A phone inside the body that is never lost or left behind would be worth an industry, though surgery would put many people off.

Who is paid. Assuming it is a phone and not only an ear radio, people buy it for themselves, the device can be copied, and the firms that own the phone networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

No prize. This is a creature's nature or a state of mind, not something made and sold.

Who is paid. Nothing is sold, so nobody pays and no seller keeps anything.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A forum where specialists answer questions is a handy service for those with a question, not a need.

Who is paid. People with questions pay or are shown advertisements, and the forum that already has the specialists gathered is hard to copy because the experts go where the askers are.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Every library book in one searchable collection would be worth an industry to readers and researchers.

Who is paid. Assuming readers pay by fee or subscription as for any library of digital books, the paper copies are destroyed in the scanning, so whoever holds the only complete collection has what nobody else can get.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Adverts thrown into people's path are one more way to advertise, not a new need.

Who is paid. Advertisers pay, the projector is easy to copy and nobody owns the open air it shines into, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Shielding yourself from pestering adverts is a convenience.

Who is paid. Ordinary people buy it and many firms could make one, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Keeping a call private matters to a narrow set of users with secrets worth guarding.

Who is paid. Firms with secrets buy it, and since the method of garbling speech is well known and easy to copy, no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A hidden network serves the few who must work out of sight, here criminals and hostile groups, though the law forbids it.

Who is paid. Assuming the groups that use it pay for access, anyone with the know-how can set up a hidden network and the law pursues whoever runs it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. A paper-thin pad that stores and shows information is the handheld screen at the centre of personal devices, an industry of its own.

Who is paid. People buy it for themselves, the design can be copied, and the electronics firms with the factories and brands collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A large prize. Information laid over what you see would change many jobs and daily errands; I judged the promise, which is larger than what has been sold.

Who is paid. Ordinary people buy it; the glasses can be copied, so the firms that already hold the software and the information shown collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. A game of pretend spying in real streets is an amusement for the people who like that sort of play.

Who is paid. Players pay to join, and since the description does not say the game needs a single shared crowd, I assume any organiser could run one like it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Small printed pictures that seem to move are a novelty.

Who is paid. Ordinary people buy them and any printer could make them, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A skin patch that swaps information with nearby devices is a convenience next to a card or a phone.

Who is paid. People buy it for themselves and thin printed electronics can be made by many firms, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Calls that reveal any eavesdropping matter greatly to a few callers with secrets and little to everyone else.

Who is paid. Firms and officials with secrets pay extra for it, the method comes from known physics that others could use, and the firms that own the phone networks collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A large prize. A screen as thin and bendable as paper could replace much printing and most rigid screens.

Who is paid. Ordinary people buy it inside the things they own; once shown it can be copied, so the firms with the big screen factories collect.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. Writing a book into genetic code is a curiosity beside ordinary storage.

Who is paid. Assuming archives and publishers pay for it as long-term storage, many laboratories can write genetic code, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Keeping songs inside a living thing's genes is a curiosity beside ordinary storage.

Who is paid. Assuming archives and labels pay for it as long-term storage, many laboratories can write genetic code, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is not very sure of this one.

A small prize. Glowing ornament on the skin is a fashion item.

Who is paid. Ordinary people buy it; once shown many firms could make it, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.

A small prize. A network connection you throw away after use serves the few who want not to be traced.

Who is paid. People buy it for themselves and it is cheap by design and simple to make, so no seller keeps much.

A model's judgement, not a reading, of the idea as if it worked the way its story promises. The model is fairly sure of this one.