109 How long would it take to create a Windows 1.0 capable machine from complete scratch? 2016-09-11T19:29:49.623

98 If 120 experts in 12 different fields were sent back 10,000 years, could they recreate the 21st century in 100 years? 2019-10-15T16:16:46.570

86 What could an average modern human achieve in medieval times? 2015-03-26T11:59:02.220

74 How would an aquatic race develop computers? 2014-11-06T16:04:45.930

71 What would it take for society reach a point where the time it takes to learn leaves no time to discover? 2014-12-10T15:31:50.433

60 How would humanity enter a Dark Age? 2015-01-27T04:52:56.573

50 How much would we learn from observing an FTL starship fly by? 2019-11-26T10:39:48.900

48 How to explain centuries of cultural/intellectual stagnation? 2016-10-25T21:58:48.570

45 Why would the richest and strongest country on Earth consistently fail at Big Projects? 2016-05-25T13:57:58.437

45 Why do aliens who visit us have higher tech than us? Couldn't they wait for us to have it too? 2017-02-06T14:24:08.577

44 Would a 100% simulated war be a way to solve national conflict? 2016-06-16T07:23:46.217

39 Could a technological society develop without wood? 2014-10-10T10:13:04.907

39 Doing chemistry under water? 2019-11-11T04:31:53.217

38 Should AI have faith too? 2015-07-08T08:59:54.597

37 Could an unusually long lived being continue to learn with the times? 2015-03-02T11:32:19.460

36 10 Commandments to prevent technological development 2016-07-09T23:22:54.020

36 What would limit the size of a sail-powered sea cargo ship using modern (or near future) technologies, and how big could we go? 2016-12-12T16:05:08.730

36 How would the indigenous peoples of North America have developed in the absense of the Europeans? 2018-02-12T01:41:43.123

36 What could prevent us from making alien technology if we had the schematics? 2019-01-18T10:30:59.810

36 What reason would an alien civilization have for building a Dyson Sphere (or Swarm) if cheap Nuclear fusion is available? 2019-06-19T14:36:08.163

35 Can the number of letters in alphabet suggest how advanced civilization is? 2019-02-02T21:36:29.743

35 Teleportation is invented but it has nasty side-effects % of the time, how will that affect usage of the technology? 2019-10-29T14:08:54.717

35 What should a god put on an island, so that its human settlers will more quickly achieve an industrialised society? 2020-01-03T16:51:16.903

34 Would cultured meat (artificial) render animal slaughter illegal? 2017-02-20T09:23:09.593

34 Bare Minimum Tech for Spaceworthy Vessel 2018-01-04T21:08:34.563

33 Could a technological society develop without agriculture? 2014-10-20T15:07:49.993

33 What will our great-grandchildren play with? 2015-01-18T23:51:50.560

32 Teaching people not to ask gods for help 2016-04-05T13:26:37.767

32 Is it possible to make spaceship very difficult to reverse engineer if you can't oversee its usage? 2017-03-27T10:15:17.680

31 What would need to happen to history to make a 21st century steampunk world? 2014-11-07T04:55:33.727

31 How would we try to defuse Yellowstone? 2015-11-25T17:10:13.213

31 What would modern IT look like if Silicon Valley had been completely destroyed in 1985? 2016-02-08T05:12:08.120

31 At what point in European history could a government build a printing press given a basic description? 2019-05-24T20:33:37.043

31 At what point in time would humans notice a 21st century satellite observing them? 2019-11-07T16:08:18.260

30 Can two civilizations on nearby stars develop independently but be at a similar technological level? 2014-10-16T13:25:17.917

29 How to keep democracies from falling behind technologically? 2018-01-09T02:39:05.990

29 Could a technologically advanced society exist as a feudal monarchy? 2019-12-02T06:56:13.790

28 How close to interstellar space travel could humans get in the near future? 2014-11-09T20:10:21.387

28 Why would an alien race have developed space travel and yet not have other technology? 2016-04-27T15:25:31.610

27 How would the road network change, after all cars are self-driving? 2014-11-14T14:50:19.593

27 Could the Industrial Revolution be delayed indefinitely? Or is it inevitable once a certain point in development is reached? 2016-11-16T09:37:57.390

27 Could Wasps and Ants reach the stone age? 2017-07-10T18:36:14.247

26 What would it take to build a bridge that crosses North Atlantic Ocean from Canada to Spain? 2014-11-05T05:14:23.510

26 Could a species with a lifespan of 20 years achieve enough technological progress to reach space? 2018-10-22T12:13:36.073

25 What is the minimum size of a self-sufficient industrial country? 2014-10-22T12:09:19.757

25 Why haven't we built city-grade domes to protect and control the environment? 2015-09-23T18:33:39.337

25 How would the software industry react if Stack Overflow was no longer available for use? 2016-01-24T13:19:34.353

25 How to prevent humanity from using alien spaceships and technology exclusively? 2019-12-16T03:00:15.997

24 What are the social implications of discovering a formula for immortality? 2014-11-24T23:22:20.253

24 In what sequence should an advanced civilization teach technology to medieval society to maximize rate of adoption? 2019-09-13T03:05:06.220

23 What technologies could an every-man teach a Palaeolithic tribe? 2018-05-24T21:35:15.103

22 Telekinesis resistant locks 2016-11-15T01:01:09.400

22 How could I justify Medieval Stasis? 2017-06-22T10:43:36.073

22 A mechanism for a level interstellar playing field 2017-08-04T01:23:17.213

21 What technologies and sciences are needed to detect a star going supernova? 2015-01-04T11:09:52.370

21 How can I keep my Love Potion formula from being stolen? 2016-02-23T20:57:59.377

21 Minimum tech level needed for a flying vehicle 2017-01-24T20:42:04.627

21 First innovation for time traveler to low-tech society 2019-01-16T23:33:14.747

21 Could earthquake cancellation work? 2019-12-16T05:35:48.747

20 How do elves make their way into the modern age? 2016-09-02T01:43:13.250

20 At what minimal technological level would the inhabitants of a binary planet system need to be to communicate with each other effectively? 2017-06-02T17:32:45.930

20 Why would radio signals be invented/transmitted when communication is not an issue? 2018-06-14T22:07:23.537

20 Units of measurement, especially length, when body parts vary in size among races 2019-08-14T19:37:18.210

19 How would an aquatic civilisation forge tools? 2014-11-06T13:31:58.657

19 Suddenly, you live in the dark! 2014-12-27T01:21:22.393

19 What kind of weapons would still be effective under water? 2016-12-04T15:19:17.150

19 The most secured, completely untraceable mobile phones in the world 2017-04-03T07:13:48.260

18 What kind of/How a secret language could be developed in middle ages by a secret society? 2014-12-02T17:23:31.707

18 Technology without heavier elements 2015-03-05T18:33:13.423

18 Non-visual Computers - thoughts? 2019-08-22T15:21:00.970

18 In a world where Magic steam Engines exist what would keep people from making cars 2019-11-19T22:49:00.890

17 What would the effects be on a earth-like planet if the magnetic field was much stronger 2015-06-04T21:38:58.353

17 Aliens picking up human radio and TV: how might it really happen? 2015-06-06T14:04:40.830

17 Time travel, assassination, and stunting technological growth 2016-07-20T21:16:31.927

17 Can a world exist with large calibre guns but without small calibre guns? 2017-10-21T13:10:46.057

16 Would nomadic people stay nomadic even in a temperate climate? 2014-10-31T17:58:16.497

16 Going from Magic to Technology 2017-03-01T15:40:23.700

15 What if an Earth-like planet had no axial tilt? (climate and technology) 2015-03-30T07:32:38.847

15 Entry requirements for a Type n civilization 2015-04-02T19:07:35.220

15 Encountering the Accountants : Spreading Numeracy in the Neolithic World 2017-01-12T14:16:58.797

15 Restricting antimatter - practical rather than legal measures 2018-07-23T10:18:50.073

15 What is a good excuse for why an early 1900's-like fantasy world has not yet invented rifles / guns of any sort? 2018-07-30T19:22:22.510

14 What would happen if a society dumped radioactive nuclear waste into their oceans? 2014-11-17T22:23:30.970

14 Is there any likely reason why personal DNA tinkering machines would become widespread? 2014-11-22T23:52:34.073

14 How would technology develop differently without astronomy? 2014-12-28T05:23:22.617

14 How would I keep a set of Medieval technology? 2015-02-27T14:46:18.567

14 Gods or Sufficiently Advanced Aliens? 2015-03-23T02:16:12.160

14 Are there physiological traits common to all tool-building species? 2017-12-29T05:32:25.247

14 How to keep my colonists primitive? 2018-02-11T18:24:14.000

14 Is there a way to keep science from ruining tribute magic? 2019-01-28T05:55:58.957

13 Elves in a Modern Society 2014-10-09T12:36:35.343

13 Sapience Pulsar - Could Intelligence Come in Waves? 2015-01-14T18:16:20.113

13 Could a species evolve intellgence and technology without Love? 2015-04-18T11:09:25.653

13 How do you establish identity when people can change their appearance at will? 2015-07-24T12:57:10.053

13 Would science and technology advance faster if the average lifespan of the human race were doubled? 2015-11-18T06:10:06.720

13 What could we do with a room with its own passage of time? 2015-12-16T17:46:46.860

13 Could a human civilization never invent the wheel? 2015-12-21T21:48:58.140

13 Vehicle-based desert travel without tracks or wheels? 2016-03-14T02:08:19.877

13 Steampunk...In a Realistic Timeline 2016-03-26T16:43:30.407