Expected in the 2050s

A large prize. Steering whole rocks to where they are wanted would serve mining and building in space, part of an industry of its own.

Who is paid. Mining and building firms are assumed to pay, and fixing engines to a rock is easy to copy, so the firms that already own ships and engines 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. Steering whole rocks to where they are wanted would serve mining and building in space, part of an industry of its own.

Who is paid. Mining and building firms are assumed to pay, and fixing engines to a rock is easy to copy, so the firms that already own ships and engines 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 working ship that carries people and cargo between worlds is the base of a whole transport industry.

Who is paid. Carriers and other firms working in space buy ships, and since a second yard could build the same craft the established shipbuilders 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. Deep sleep that saves food, water and air would make very long voyages possible.

Who is paid. Carriers would pay, and nothing in the description stops others doing it once it is shown to work, so the firms that already supply ships 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. Pushing craft with a beam from outside would let ships fly without carrying their own fuel, changing launch costs.

Who is paid. Ship operators pay for the push, and since others could build beam stations the gain goes to those who already own the sites and power plants.

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 vessel that renews its own air, water and food could stay out for very long voyages, a working ship for a transport industry of its own.

Who is paid. Carriers and expedition firms buy ships, and many yards could build them once shown how, so established vehicle builders 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. Steering whole rocks to where they are wanted would serve mining and building in space, part of an industry of its own.

Who is paid. Mining and building firms are assumed to pay, and bolting engines to a rock is easy to copy, so the firms that already own ships and engines 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 spaceship a private person can own and fly would open a new kind of private travel.

Who is paid. Private owners buy the ship, assumed here to be ordinary people and not firms, and since the design could be copied the established builders of craft 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. Metal and other materials from space rocks would be an industry of its own and could change the cost of raw materials.

Who is paid. Factories and builders buy the output, and since mining methods are easy to copy the firms that already own ships and refineries 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. It is an event, a crowd racing to stake claims, not a product anyone makes or sells.

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

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 private home in orbit is a dwelling for a very few who could afford and want it.

Who is paid. Unlike other stations the description names a private resident, who pays for it, and established station builders could all make one.

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. Metal and other materials from space rocks would be an industry of its own and could change the cost of raw materials.

Who is paid. Factories and builders buy the output, and since mining methods are easy to copy the firms that already own ships and refineries 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. Flinging or pushing payloads to space without big rockets would change the cost of the whole launch industry.

Who is paid. Firms with cargo to launch pay, and since others could build such works the gain goes to those who already own launch sites and power.

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. Metal and other materials from space rocks would be an industry of its own and could change the cost of raw materials.

Who is paid. Factories and builders buy the output, and since mining methods are easy to copy the firms that already own ships and refineries 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 holiday resort in space would be a travel industry of its own.

Who is paid. Unlike other stations this one is sold to holidaymakers, who pay for their stay, and since the structure could be copied the resort owners and builders already in the trade 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. Pushing sail ships with a powerful laser would let them fly without carrying fuel, changing the cost of space transport.

Who is paid. Whoever runs the ships pays for the push, assumed here to be carriers, and others could build such lasers, so the owners of the power and 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. Hurling cargo off the Moon without rockets would change the cost of everything built in space.

Who is paid. Firms with cargo to launch pay, and since others could build such works the gain goes to those who already own launch sites and power.

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 control room that surrounds the pilot with displays is a better cockpit, a fitting of the ship.

Who is paid. Ship operators buy it as part of the craft, and the established makers of flight instruments supply it since it 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 fairly sure of this one.

A small prize. Spinning to give weight is a design feature of a habitat, useful but not a product of its own.

Who is paid. Whoever pays for the habitat pays for this, assumed here to be a government, and any habitat builder can use the idea so the established builders 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. Bringing sunlight into a closed colony is needed for life there, but it is a part of the habitat.

Who is paid. A part follows the settlement, which a government pays for, and the builders that already win such contracts supply it since it 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 fairly sure of this one.

A large prize. Flinging payloads to space without rockets would change the cost of the whole launch industry.

Who is paid. Firms with cargo to launch pay, and since others could build such a track or gun the gain goes to those who already own launch sites and power.

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 place for many people to live and work beyond Earth is a building industry of its own.

Who is paid. A settlement is a public work a government pays for, and the big construction and space firms that already win such contracts would build it.

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 warship strong enough to defend a whole planet is worth a great deal to the government that needs it, though such ships would be built rarely.

Who is paid. It is military, so a government pays, and the arms and space firms that already hold such contracts build it.

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. It is a stale smell that builds up in sealed habitats, a nuisance and not a product.

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

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 place for many people to live and work beyond Earth is a building industry of its own.

Who is paid. A settlement is a public work a government pays for, and the big construction and space firms that already win such contracts would build it.

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 engine that moves ships faster or more cheaply would change the cost of all space transport.

Who is paid. An engine is bought by whoever runs the ship, assumed here to be carriers, and established engine builders could copy it once it worked.

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 working ship that carries people and cargo between worlds is the base of a whole transport industry.

Who is paid. Carriers and other firms working in space buy ships, and since a second yard could build the same craft the established shipbuilders 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. Suspending and preserving the body would make very long voyages possible and, assumed here, would matter to medicine too.

Who is paid. Carriers and hospitals would pay, and nothing in the description stops others making it once it is shown to work, so the firms that already supply ships and hospitals 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 machine wise enough to run or remake a whole society's affairs would change how most people live and work.

Who is paid. I assume a single machine serving everyone would be built as a public work, so a government pays, and the firms that already build large computing works for governments 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 material that computes the way nerve tissue does would let machines handle tasks ordinary circuits manage badly, which changes costs for the computer industry.

Who is paid. Firms that need computing pay, and I assume others could learn to grow or mix such a material in time, so the firms that already sell computing to every business 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 tiny simulated civilisation in a box is a marvellous plaything, assumed here to be kept for amusement.

Who is paid. People would buy it as a toy, and being hard to build does not stop a second firm building one, so I assume 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 machine mind as able as a person could do most kinds of work, which changes how nearly everyone earns a living.

Who is paid. Firms would pay to put it to work, and once one had been built others could learn to build their own, so I assume the firms that already own costly computing plant and sell to every business 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 machine that can invent whole new sciences to solve a problem would change how most people live and work.

Who is paid. I assume a single machine serving everyone would be built as a public work, so a government pays, and the firms that already build large computing works for governments 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 chip that carries an artificial being for its owner, which I assume is kept as a companion, is worth an industry and not a change in how all work is done.

Who is paid. People are assumed to buy it for themselves, and once such a chip exists others could be made, so the firms that already own the costly chip 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 stored copy of a skilled person's ways of responding lets a firm keep using that skill, which is worth an industry of its own.

Who is paid. Firms pay, and each recording is of one person, so whoever holds it controls something no one 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 large prize. Stepping inside the network as a place would be a new medium for play and work, worth an industry of its own.

Who is paid. Ordinary people buy the gear and the access, the idea is easy to copy, and firms that already own networks and gadget 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.

No prize. These are free beings that act for themselves in the story and not a product anyone owns or sells.

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 computer grown from living nerve cells that outdid ordinary chips would change the cost of computing for one industry after another.

Who is paid. Firms that need computing pay, and I assume others could learn to grow such tissue in time, so the firms that already sell computing to every business 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 material that computes the way nerve tissue does would let machines handle tasks ordinary circuits manage badly, which changes costs for the computer industry.

Who is paid. Firms that need computing pay, and I assume others could learn to grow or mix such a material in time, so the firms that already sell computing to every business 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 mind copied from a crustacean is far short of a person's and is assumed useful only for narrow control jobs.

Who is paid. Firms would buy it for such jobs, and once one nervous system had been copied I assume others could do the same, 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. Copying papers with a pass of the hand is a convenience, and few would have an implant for it.

Who is paid. A few people would buy the implant, and many gadget 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 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. 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 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. The description gives these huge machines with snaking arms no job, so they are judged as heavy handling machines of unusual shape, a niche.

Who is paid. Firms doing heavy work are assumed to buy them, and as many could copy the shape the makers of heavy equipment with 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.

No prize. Tiny machines that hunt and eat clockwork are a pest in the story, doing only harm and serving no owner the description names.

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 not very sure of this one.

A vast prize. Minute machines that copy themselves and build things would change how nearly everything is made, assuming people stay in charge of them, which the story doubts.

Who is paid. Firms would pay for them to make goods, but a machine that copies itself cannot be kept scarce, 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 boxed family of android neighbours for lonely homes is company sold as a product, worth an industry of its own.

Who is paid. People buy it for themselves, and as many could make such machines the firms with factories and well-liked 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. Extremely small robots are assumed here to do fine work inside goods or bodies, enough for an industry of its own.

Who is paid. Firms buy them for their work, and as nothing says they cannot be copied the makers with precision 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 vast prize. The description gives this creature of tissue and machine no job, so it is judged as a general working machine that would change how most people work.

Who is paid. Firms buy them as labour, and since many could build such bodies once shown how, the large manufacturers with factories and service networks collect what is left.

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 control that sends a built animal to sleep is a feature of the animal, not a product by itself.

Who is paid. Owners pay for it within the price of the animal, and any maker of such animals could include it.

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 humanlike robot that is also its owner's computer is judged as a companion and helper, worth an industry of its own.

Who is paid. People buy it for themselves, and as many could make such machines the firms with factories and well-liked 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. Building living things from plain chemicals would give farming, medicine and industry organisms made to order.

Who is paid. Firms would buy such organisms for their work, and once the method was known other laboratories could repeat it, so established chemical and drug 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 large prize. Carrying a child outside the body would spare mothers the risks of pregnancy and open parenthood to people who cannot carry a child.

Who is paid. Would-be parents would pay, and other laboratories could copy the chamber once it worked, so established fertility clinics 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. Shaping a child before birth to be healthier and abler is something many parents would pay dearly for.

Who is paid. I assumed parents pay rather than the state as in the story; the methods could be copied, so established fertility clinics 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. Destroying diseased tissue while sparing the healthy would treat tumours and infections without surgery.

Who is paid. I assumed clinics buy it and, following the story, that the crystals are a rare find that cannot be manufactured, so whoever controls the supply keeps what is left.

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. Giving back youthful vigour is in effect holding off old age, which nearly everyone alive would want.

Who is paid. People would buy it for themselves, and a new medicine is protected from copying for a long while, so its maker keeps much of the gain.

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. Raising mental ability would be wanted by a great many people; assumed the gain is real but modest.

Who is paid. People pay for the shots, and the developer keeps the gain because a new medicine is protected from copying.

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. Putting people safely into long dormancy would make very long journeys possible and give hospitals time to treat the gravely ill.

Who is paid. I assumed carriers and hospitals buy it; the method could be copied once known, so the firms that already run ships and hospitals 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. Putting people safely into long dormancy would make very long journeys possible and give hospitals time to treat the gravely ill.

Who is paid. I assumed carriers and hospitals buy it; the method could be copied once known, so the firms that already run ships and hospitals 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. The name is of the person, so the thing judged is the surgery that makes them, a niche form of advertising.

Who is paid. Firms pay for the surgery, and other surgeons could do the same work, so established cosmetic clinics 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. Growing back a lost arm or leg would be worth an industry of its own to those who need it.

Who is paid. I assumed hospitals buy the cells and do the growing; living cells can be grown on by others, so established medical suppliers 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. Putting people safely into long dormancy would make very long journeys possible and give hospitals time to treat the gravely ill.

Who is paid. I assumed carriers and hospitals buy it; the method could be copied once known, so the firms that already run ships and hospitals 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. Putting people safely into long dormancy would make very long journeys possible and give hospitals time to treat the gravely ill.

Who is paid. I assumed carriers and hospitals buy it; the method could be copied once known, so the firms that already run ships and hospitals 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. Regrowing lost or ruined tissue would change what hospitals can do for the badly injured.

Who is paid. I assumed hospitals buy and run it; once it worked other makers could copy it, so established medical equipment firms and hospitals 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. Regrowing lost or ruined tissue would change what hospitals can do for the badly injured.

Who is paid. I assumed hospitals buy and run it; once it worked other makers could copy it, so established medical equipment firms and hospitals 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. Grown eyes that replace failing ones would be worth an industry.

Who is paid. Patients pay, with insurers behind them, and established tissue growers and eye clinics collect since others could grow them too.

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. It serves only people who work in space or under unusual gravity, which is a niche.

Who is paid. I assumed employers and space carriers buy it for their crews; a new drug is protected from copying for a while, so its maker keeps what little is left.

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. Carrying a child outside the body would spare mothers the risks of pregnancy and open parenthood to people who cannot carry a child.

Who is paid. Would-be parents would pay, and other laboratories could copy the chamber once it worked, so established fertility clinics 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 a child outside the body would spare mothers the risks of pregnancy and open parenthood to people who cannot carry a child, and the mixing of the parents' genes does not change the size.

Who is paid. Would-be parents would pay, and other laboratories could copy the chamber once it worked, so established fertility clinics 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 banned tool for changing a chosen person is a niche; assumed a state agency is the only buyer.

Who is paid. A government pays, and the laboratories 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. Breathing liquid to bear high pressure serves a few divers and space crews.

Who is paid. Firms would buy it for their crews, and I assumed the liquid is a chemical many firms 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 large prize. An implant that improves how the body uses food would be wanted by a great many people.

Who is paid. Patients pay, and makers of medical implants collect since rivals could build the same device.

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. Sleeping through a single flight is a comfort for travellers, unlike the long dormancy that makes far voyages possible.

Who is paid. Travellers would buy it for themselves, and a new drug is protected from copying for a while, so its maker keeps what is left.

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 others the pictures in your own mind is a novelty and an aid to explaining.

Who is paid. The wearer shows their own thoughts willingly, so people would buy it for themselves, and many 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 not very sure of this one.

A small prize. Showing others what you remember or picture is a new kind of camera, a pleasure and a keepsake rather than a need.

Who is paid. Unlike the probes used on unwilling subjects, I assumed this is used by a willing person to show a scene to others, so ordinary people would buy it, and once one maker had it others 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 not very sure of this one.

A small prize. Telephones and letters already carry messages, so sending them mind to mind is a convenience.

Who is paid. People would buy it for themselves, and once it existed many 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 not very sure of this one.

A large prize. Remaking a person's character for good would be an industry of its own for those unhappy with who they are.

Who is paid. The description does not say whether the subject is willing; I assume people seek it for themselves and pay, and the clinics that already treat the mind would collect since the methods could 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. It is done to a person without their say, to hurt them, break their mind or override their will or body, which no one may lawfully buy or use.

Who is paid. Assuming it is outlawed for everyone, governments and employers included, nothing is 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. Lamps and night glasses already let people see in the dark, so a light inside the eye is a convenience.

Who is paid. People would buy it for themselves, and once it existed many 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. Direct stimulation of the reward centres would draw a large and steady demand, as strong drugs do.

Who is paid. Users would buy it for themselves, legal or not, and it is simple enough that many 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 not very sure of this one.

A small prize. Sharing one person's feelings with many others is a religious or social comfort for those who want it.

Who is paid. Believers would buy the box for themselves, and a simple box is easy to copy, 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. It is done to a person without their say, to hurt them, break their mind or override their will or body, which no one may lawfully buy or use.

Who is paid. Assuming it is outlawed for everyone, governments and employers included, nothing is 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 large prize. A signal that makes lessons stick would speed up schooling, but the learner still sits through the recording at an ordinary pace.

Who is paid. Learners and families would buy the recordings themselves, and any publisher could add such a signal once it was known, 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. This names a person, but the link behind it, a mind wired into a machine, is a better set of controls where hand controls already do the job.

Who is paid. Firms that run the machines would buy it, and once one maker had the link others 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. Choosing how to feel at home would stand in for much of what people now seek from drink, pills and therapy.

Who is paid. Households would buy it as a home appliance, and many 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 not very sure of this one.

A large prize. Choosing how to feel would stand in for much of what people now seek from drink, pills and therapy.

Who is paid. Households would buy it as a home appliance, and many 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 not very sure of this one.

A small prize. Sorting the memories of a very long life only matters to people who live that long, a niche unless long life comes too.

Who is paid. The long-lived would pay for it themselves, and it is a method any trained person could offer, 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 person whose eyes act as a camera is a niche tool for filming and watching.

Who is paid. I assumed broadcasters pay for it, as in the story, and once one maker had wired a camera to the eye others 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 not very sure of this one.

A large prize. Pulling memories and thoughts out of an unwilling head would change how crimes are solved and secrets are kept.

Who is paid. The description speaks of extracting, so I assumed it is done to a subject by police, courts and spy services, and the firms that already supply them could copy the machine and 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 trained sea animal with implants does a few naval jobs that machines can also do.

Who is paid. A navy would pay, and the firms that already hold its contracts could do the work and 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. Removing chosen memories would be an industry of its own for people haunted by what they recall.

Who is paid. People would pay to be rid of chosen memories, and the clinics that already treat the mind would collect, since the procedure could 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.

A vast prize. Chips that lift the mind beyond its natural limits would change how most people work and learn.

Who is paid. People would pay to keep up with each other, and the chip makers and surgeons already in place could copy the design and collect; this goes further than the helmets and chairs that only sharpen ordinary thought.

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. This names a person, but the implant behind it hires out a body while its owner is absent, a narrow trade where it is allowed at all.

Who is paid. Employers who were let to use it would pay, and a control implant could be copied by any maker, 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. Letting software run a body serves the few employers who want obedient hands.

Who is paid. Employers would pay for it to control workers, and the chip could be copied by many makers, 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 watch already tells the hour, so showing it inside the wearer's sight is a convenience.

Who is paid. People would buy it for themselves, and once it existed many 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. A mesh joining the mind to computers would be an industry of its own.

Who is paid. People would buy it for themselves, and since the implant could be copied the firms that already run the networks and do the surgery would 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. I took the faster learning to be of the same kind as the knowledge-loading helmets, which would replace years of schooling for most people.

Who is paid. Families and learners would pay for it themselves, and once one firm had built the gear others could copy it and many could write the 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. Fast capsules in sealed tubes would rival trains and aircraft on their routes, which changes the cost of travel between cities.

Who is paid. Governments pay for a public way of this size, and the large 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.

No prize. This is an agreed set of routes for ships rather than a thing anyone makes or buys.

Who is paid. Nothing is made or sold here, 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. Fast capsules in sealed tubes would rival trains and aircraft on their routes, which changes the cost of travel between cities.

Who is paid. Governments pay for a public way of this size, and the large 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 large prize. A flying motorbike that carries its rider wherever they please would be an industry of its own as the motorbike is; the kitchen and medical kit aboard add comfort rather than reach.

Who is paid. Riders buy it for themselves, and a light craft like this could be built by many workshops once the trick is known, 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 car that needs no driver gives back the hours spent at the wheel and is worth an industry of its own; hovering above the road adds little to that.

Who is paid. Owners buy it, and since several firms can build a driving system once it is shown to work, the car makers that already own factories, dealers and repair 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 train that needs no track saves the cost of laying it, but it is then close to a road convoy, so the gain is modest.

Who is paid. Hauliers and carriers buy it, and the established makers of heavy vehicles 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. Tiny modules that join into larger structures by themselves would change the cost of construction.

Who is paid. Builders buy them, and once they can be copied the established makers of building materials 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. Paper that cannot be forged is useful for money, deeds and certificates, which is a niche.

Who is paid. Banks, firms and offices buy it, and I assumed more than one maker could learn the method, so established security printers 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. Walls that let a home change shape are a pleasant extra, not a change in the cost of housing.

Who is paid. Home owners pay for it, assuming they choose it, and a blend is easy to copy, so builders and building-supply firms 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 powder that forms writing by itself is a neat way to take notes, which is a convenience.

Who is paid. People buy it as they buy pens and paper, and once the powder is understood many could make 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. A stick that sets the powder into text is the same note-taking convenience as the powder itself.

Who is paid. People buy it as they buy pens and paper, and once the powder is understood many could make 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. An exceptionally hard metal would cut wear and replacement costs in tools, machines and structures.

Who is paid. Makers of tools and machines buy it, and a metal recipe gets copied, so the established metal makers with furnaces and customers 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 tent that weighs almost nothing is a pleasure for campers and travellers.

Who is paid. Campers buy it, and once the fabric can be copied the outdoor brands and shops they already use 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 material that switches between preset shapes lets one part or tool do the work of many across several industries.

Who is paid. Makers of tools, vehicles and goods buy it, and once the method is known the big materials firms with plants and customers make it and 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. Buildings that grow themselves into shape would sharply cut the cost of putting up homes.

Who is paid. People buy it as a home, and since living stock multiplies once any of it is sold, no originator can hold it, so the growers, builders and landowners that already hold stock, sites and the trade of housing 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 creature that digs rock and brings out ore would cut the cost of mining.

Who is paid. Mining firms buy it, and a living tool breeds and spreads, so the miners and suppliers already in the trade 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. Clothing that reshapes itself is a pleasure and a fashion, not a need.

Who is paid. People buy it to wear, and living cloth can be bred by others, so fashion houses with known names 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. A city is not a product, so I judged the structural glass it is built from, which is one building material among many.

Who is paid. Builders buy the glass and ceramic, and established makers of building materials can all supply 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. Whole communities living on the seabed would open a new kind of place to settle, which is worth an industry of its own.

Who is paid. A dome that keeps the sea out shelters everyone inside at once, so a government pays for it, and the marine 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 large prize. Extremely strong panes of great thinness would change glazing, screens and light structures.

Who is paid. Builders and manufacturers buy them, and once the method is known the big materials firms with plants and customers make it and 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. Much taller towers add floor space in a few crowded cities without changing what building costs.

Who is paid. Developers pay for them, and the firms that already own city land and do big construction 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 heavy beam that can strike ships or aircraft at the speed of light would reshape how fleets are armed and defended.

Who is paid. Armies buy it with public money, and since rival makers can copy it the established arms suppliers with standing army 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 large prize. Judged as if it worked, a field that hides whole ships or bases from watchers would change how forces are found and struck.

Who is paid. Assuming it is bought to hide forces in war, governments pay, and assuming rivals learn to copy it the established arms suppliers 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 beam weapon carried in the hand does much the same job as a gun, so the gain over a gun is modest.

Who is paid. Armies buy it with public money, and since rival makers can copy it the established arms suppliers with standing army 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. Assuming a soldier carries it, it does much the same job as a gun, so the gain over a gun is modest.

Who is paid. Armies buy it with public money, and since rival makers can copy it the established arms suppliers with standing army 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 ship that detectors cannot find can strike first and escape, which changes what a fleet is worth.

Who is paid. Governments pay to hide their warships, and assuming rivals learn to copy it, as with other ways of hiding forces, the established arms suppliers 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 a soldier carries it, it does much the same job as a gun, so the gain over a gun is modest.

Who is paid. Armies buy it with public money, and since rival makers can copy it the established arms suppliers with standing army 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. Assuming it serves as many weapons and tools in one, it would replace much of what a soldier carries.

Who is paid. Armies buy it with public money, and assuming rival makers learn to copy it the established arms suppliers with standing army 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. Fitted to one soldier's armour, it does much the same job as a gun, so the gain over a gun is modest.

Who is paid. Armies buy it with public money, and since rival makers can copy it the established arms suppliers with standing army 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. A weapon built into the body appeals to a few bodyguards, soldiers and enthusiasts and stays a niche.

Who is paid. Assuming it is legal to buy as in the story, individuals pay for themselves, and the clinics and surgeons already able to do such work 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 weapon built into the body appeals to a few bodyguards, soldiers and enthusiasts and stays a niche.

Who is paid. Assuming it is legal to buy as in the story, individuals pay for themselves, and the clinics and surgeons already able to do such work 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 machine built for single secret killings serves only a few covert services, which makes it a niche.

Who is paid. Secret services pay, and it is a small variant of machines the existing arms and robot makers already build, 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 not very sure of this one.

A small prize. A bird bred to kill is a specialist tool for a narrow trade.

Who is paid. State agencies would pay, and since a buyer or a rival could breed from the birds once they exist, no breeder holds them alone and the suppliers such agencies already use 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. Striking any point on the ground from orbit would be a major arm of a great power's forces.

Who is paid. Governments pay, and the rocket and arms firms that already launch and build for them would win the work, since the idea itself is simple.

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. Finding any chosen person wherever they are would change police work, rescue and manhunts enough to be an industry.

Who is paid. Police and security services pay, and once shown to work others could build it, so existing police suppliers 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. It is done to a person without their say, to hurt them, break their mind or override their will or body, which no one may lawfully buy or use.

Who is paid. Assuming it is outlawed for everyone, governments and employers included, nothing is 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.

No prize. A plant that overruns and remakes every landscape it reaches is a hazard, and it is banned.

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

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. Butterflies that stay with a bouquet are a pretty extra on a gift.

Who is paid. People buy them with their flowers, and since living stock multiplies once any of it is sold, no originator can hold it, so the florists and breeders 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. Housing a whole town with its work and services in a single structure is a building project on the scale of an industry.

Who is paid. Residents buy or lease the homes and shops inside, as they would in any large development, and since others could put up such a structure the developers and landowners who already hold 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 small prize. A home whose layout can be changed spares some rebuilding, but it is a feature of a house and does not make housing cheaper or more plentiful.

Who is paid. Home owners pay, and once the flexible material is known the builders and developers who already hold land and customers would 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 chair grown as a living plant is a novel way to get ordinary furniture.

Who is paid. Households buy it, and I assumed an ordinary plant trained into shape, which any grower could do, 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. Locked into a fixed form, this house has lost the reshaping that made its kind special and is an ordinary home.

Who is paid. Households buy it as they would any house, and since houses are easy to build the builders and developers who already hold land and customers 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 booth that cleans the body with no water at all would cut what homes spend on water and plumbing, which is more than a comfort.

Who is paid. Households buy it, and I assumed it can be copied, so the firms that already make and fit bathroom fixtures 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. The feeling of floating is a pleasant novelty for rest.

Who is paid. People buy it for the home, and I assume other furniture makers could copy it once it had been seen.

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 building project that plans and drives its own construction would change the cost of building.

Who is paid. Developers pay for it, and I assume the directing system is software others could write once it had been shown 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 chair grown to fit its owner is a novel way to get comfortable furniture.

Who is paid. People buy it for the home, and since living stock multiplies once any of it is sold, no originator can hold it, so the breeders and furnishing shops that already hold stock and showrooms 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 ban on human driving is a law; the gain goes to makers of self-driving vehicles, which are a separate thing.

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.

No prize. Permits, papers and traffic rules for space travel are set by governments, not sold as 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.

No prize. Permits, papers and traffic rules for space travel are set by governments, not sold as 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 large prize. A machine that decides cases fairly would change the cost and speed of the courts.

Who is paid. A government pays for it, and since others could build such a machine once it exists, the suppliers that already hold contracts for courts and public offices 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 machine that decides cases fairly would change the cost and speed of the courts.

Who is paid. A government pays for it, and since others could build such a machine once it exists, the suppliers that already hold contracts for courts and public offices 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. Money that cannot be forged saves the cost of fakes, a modest gain; unlike the fossil shells it is bred to order.

Who is paid. The government that issues the money pays, and whoever controls the breeding of the animals cannot 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.

A small prize. A new spectator sport is entertainment, a niche.

Who is paid. Fans pay to watch, and since a sport is easy to copy, those who already own teams, grounds and broadcast deals 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.