72 How can Santa exist when adults buy the toys? 2015-04-01T15:10:01.903

70 Do centaurs suckle from horse nipples or human nipples? 2015-05-29T22:30:53.240

70 Would a culture with magic consider it magic? 2016-05-26T17:14:12.230

53 Infinite flat world 2015-03-20T15:10:32.653

53 How could mushroom/fungi forests be possible? 2017-10-15T23:24:18.283

48 Where to hide the Illuminati? 2015-12-08T14:59:47.057

44 How can I explain English existing in a fantasy world? 2017-01-19T20:22:31.330

44 How could elves survive without any fat cell in their body? 2018-10-31T06:30:40.230

41 Papers, please: Can characters trapped in our reality acquire enough paperwork to be legal? 2015-07-10T05:32:19.640

41 How does Santa keep the elves from revolting? 2015-12-16T23:08:04.010

40 Make slimes great again, but how? 2018-11-14T11:45:38.493

35 If my world is flat (obviously not possible) how would I explain the edges? 2017-09-29T02:18:55.820

35 What sort of world would help prevent an intelligent species from discovering evolution? 2019-12-22T17:50:45.240

33 How to conquer a country, forever 2015-09-02T19:24:55.853

33 How to defend when attacked by an avian species? 2018-11-05T15:14:43.460

31 A planet rotating twice per second; what mass is needed to hold it together, and how oblate would it be? 2017-01-17T17:03:58.260

29 Can the existence of an orthogonal reality be proven to those who cannot experience it? 2017-02-03T06:24:24.720

28 Medieval ways to tell time, without a sun or stars 2018-06-13T15:38:52.103

27 A guy asked me to kill 15 trolls, how do I prove that I did it? 2018-11-13T18:31:57.190

26 What if an Earth-like planet had no axial tilt? (impact on ecosystem) 2015-03-31T05:37:45.657

26 World where gender roles are swapped 2015-08-06T07:09:00.237

26 Can I just stack the Earth? 2016-02-05T09:52:31.843

26 Is there a reason why similar or the same musical instruments would develop? 2017-01-06T14:44:33.833

24 How can I brighten the night sky (just a bit)? 2015-01-28T13:57:46.920

22 How much time would it take for a planet scale Miller-Urey experiment to generate intelligent life 2016-11-08T12:33:16.417

22 How to prevent your enemies from digging under you? 2018-02-16T03:15:44.157

21 A World with Freshwater Oceans? 2017-07-07T16:49:18.343

20 Why would you build underground defensive structures in an an alternate world medieval europe? 2014-09-29T14:05:00.870

20 How would a "reversed planet" be able to exist? 2016-11-22T12:57:20.550

19 How would a planet-sized computer power receive power? 2016-10-17T04:40:08.480

18 Would there be evolution on a perfect world? 2015-09-22T02:57:03.423

18 What type of architecture would an arachnid /crustacean likely to have? [SCULPTING FINISHED] 2016-11-30T15:43:33.223

17 What would it be like to live on a rapidly rotating planet? 2016-12-16T16:43:13.837

17 How large can a world be in fantasy? 2017-07-21T06:37:41.873

16 Development of society with random encounters 2015-04-03T22:09:26.780

15 Could a habitable planet form with no major bodies of water? 2015-12-13T16:24:24.657

15 How to accomplish planetary independence 2015-12-16T18:59:10.720

15 Elves have alcoholic blood 2018-11-01T15:01:19.600

15 Do I have to rename all creatures in a new world? 2019-09-04T11:33:03.467

14 An enviroment where a bird-like creature can survive on passive feeding 2014-10-29T14:00:39.480

14 Weapon developed in modern melee only world 2014-12-05T17:15:44.197

13 What effect would three moons have on ocean/landscape formation? 2014-10-15T19:09:23.443

13 Economic Effects of 'The Rift' 2015-05-14T14:05:30.517

13 How could two alternate realities "blend" at a single point in space time? 2018-02-12T17:58:07.273

13 Atlantis and Sewage 2018-05-09T17:33:41.237

13 Simulating gravity in a gravity-less universe 2018-08-02T14:28:21.830

13 Planet with a surface area that’s 90% water or more? 2019-09-03T04:35:04.300

12 Centralised continent, with sea/wind currents? 2014-10-08T15:34:44.253

12 What would the world be like after 10,000 years if we all suddenly disappeared? 2015-03-30T22:34:24.393

12 P = NP goes public today. How will the world look like in a week? 2015-04-06T01:03:46.770

12 What would happen if everyone in the world desired equally to start a business? 2015-12-23T09:21:39.163

11 What would a culture based around light look like? 2014-10-08T12:52:16.000

11 What effect would a red sky and/or sun have on plants and animals? 2014-10-30T20:19:12.317

11 Could a third of the world's population be on another planet in 100 years? 2015-02-05T14:07:25.210

11 One day, China suddenly stops all exports. What happens to the world economy? 2015-12-26T05:30:09.910

11 Defining a superfluid ocean 2019-07-22T23:05:40.250

10 How would humans have developed without fossil fuels? 2015-02-04T20:38:15.590

10 What would humans look like if their evolution had been slower? 2015-09-28T10:05:33.273

10 Is the human bias in fictional universes a best-practice or a lack of imagination? 2016-01-29T23:41:22.567

10 Creating a planetary system that can support six different types of biochemistry 2016-03-07T02:00:01.653

10 Resources for Climate World building 2016-05-15T20:14:49.047

10 Resolving anachronism: Have a modern society with outdated warfare 2017-03-05T21:10:32.733

10 Could the equator of a world be a closed-time like loop? 2019-02-08T05:56:03.487

10 Can you train primates to perform every day jobs that humans perform today? 2019-11-07T00:05:27.253

9 Could the moons of a Gas Giant all be habitable if that planet was in the habitable zone? 2015-05-22T20:52:18.040

9 Could cosmic background radiation be used as a means of cataloging parallel universes? 2015-10-16T20:10:56.093

9 Psychological effects of a "normal" human in a fantasy setting 2015-11-10T18:32:12.000

9 No sunlight, just high-energy radiation? 2016-02-21T16:40:37.433

9 Rapid healing magic causes long-term illness later - effects on society 2016-03-06T09:35:50.847

9 How large could an empire with WWII-era tech become on a very large world? 2016-06-17T14:41:47.053

9 Where are the wettest and driest places in this world and why 2016-08-02T00:24:41.267

9 If our world was on a turtle... then how big would the planet the turtle is living on be? 2016-08-02T12:42:26.040

9 Are these conditions for a planet realistic? 2017-06-09T02:00:23.387

9 How can I explain tree-like creatures that are only active in the cold of night 2018-08-24T08:56:47.317

8 What change in the laws of physics would prevent the function of conventional digital circuits without breaking everything else? 2015-02-20T18:49:44.773

8 Help with designing currency 2015-03-05T18:48:38.497

8 Could an ocean be saturated with something other than salt? 2015-03-06T02:48:02.670

8 Climate on an Island World 2015-04-13T17:32:37.187

8 A world with simultaneous precognitive dreamining 2015-08-03T14:54:55.840

8 Chemical propellant free automatic weapons 2015-08-03T18:41:50.723

8 Liquid universe: The beginning 2015-12-07T08:53:29.850

8 The neverending winter 2016-01-14T17:47:41.657

8 Economy in Mirror-Worlds 2016-05-19T20:58:20.780

8 Plausibility of fantasy setting 2016-10-22T10:15:27.433

8 Plausibility/mechanisms for biogenic silica on a terrestrial planet with a reducing atmosphere 2017-03-23T16:35:27.427

8 What's the longest plausible orbital period for a habitable planet with a 3:2 spin-orbit resonance? 2017-03-28T03:29:44.947

8 What stars and composition of gases should my planets have to have a sky for each colour in the rainbow? 2017-10-28T11:01:13.507

8 What sort of habitats could exist Pre-Zanclean Flood which formed the Mediterranean Sea? 2018-04-10T20:04:11.583

8 Photosynthesis analog, plausible? 2018-10-12T21:00:02.287

8 Cryomancer, combat style 2018-11-08T18:30:32.143

7 How to make a world MAD 2015-01-15T23:05:06.937

7 How would todays (handheld) guns/ammo evolve in the far future? 2015-01-16T10:06:04.747

7 Ancient gods return to earth in 2001. How does it affect the following 30 years? 2015-05-02T11:29:47.573

7 Isolation of a population in medieval times 2015-08-05T09:48:24.617

7 Corporations becoming actual humans 2015-10-27T22:30:27.850

7 The Rocky Road of Life for Rocks 2016-03-21T18:27:54.617

7 Other universes in a broad sense 2016-09-16T15:34:24.240

7 Would it be possible for iron and silver to be combined chemically into an alloy? 2016-10-12T18:59:54.743

7 Can long-term exposure to high-energy radiation without corresponding visible radiation induce melanism in a species? 2017-03-15T01:38:26.860