112 How does a species who cannot distinguish left from right build their cities? 2017-05-23T11:48:01.863
68 How could a language that uses a single word extremely often sustain itself? 2016-10-25T17:05:16.550
65 What would be left of a civilization founded in dinosaur times? 2015-03-22T16:05:22.977
64 What sort of problem would drive a near omnipotent civilization to seek an "outside the box" solution? 2016-01-25T04:46:56.623
58 Why would a civilization outfit buildings with separate portals for entering and leaving them? 2017-03-04T16:35:25.380
55 Why would a civilization develop a taboo against a highly nutritious food that grows well in its climate? 2020-01-25T23:41:01.923
54 Would a fighter pilot with an invincible space ship be able to conquer the galaxy? 2016-01-27T18:37:59.267
49 How would they learn astronomy, those who don't see the stars? 2016-10-12T13:23:18.053
48 Is Honesty always the best policy? What could go wrong if a society valued honesty over every other virtue? 2015-11-26T12:57:46.503
45 What are the primary triggers for the decline and fall of great empires? 2014-09-25T14:13:20.890
42 How do you tell time on a world with 9-year days? 2017-02-27T15:49:05.507
41 How many people are necessary to maintain modern civilisation? 2019-06-17T16:49:20.220
40 Can I Have A Destroyed Civilization with No Ruins? 2014-10-01T02:41:00.257
40 Only Three Books: Restarting Physics after civilization collapses 2018-01-10T00:49:54.877
39 Why would a crash landed generation fall back to the stone age? 2016-11-23T17:56:59.517
39 What could make a remote village also have reasonably high traffic? 2017-12-27T14:06:36.477
36 What methods might an ancient civilization use to desalinate sea water? 2017-10-29T17:58:20.837
36 Only Three Books: Restarting Chemistry after civilization collapses 2018-01-09T16:27:47.720
35 How Would Civilisations on Different Planes of a Cube Planet Interact? 2019-10-23T12:09:16.627
33 If it wasn't maintained for hundreds of years, would the Channel Tunnel collapse? 2020-01-27T16:56:55.743
32 Warrior caste in an utopian society: what would keep them peaceful for centuries? 2017-02-27T23:07:10.793
31 How "advanced" can a stone age society get? 2014-10-03T15:13:32.683
30 Can two civilizations on nearby stars develop independently but be at a similar technological level? 2014-10-16T13:25:17.917
30 In what era or tech level in earth's history did people have the ability to cross a super-earth's ocean 50,000 km wide? 2018-05-03T07:15:33.503
30 How old do surviving children need to be to keep human civilization from failing? 2018-08-30T23:18:24.470
30 Is it possible to rule a galaxy without mastering teleportation? 2018-09-07T15:38:55.137
29 How long would it take to remove all trace of a civilisation, with malice and intent? 2014-11-24T13:54:35.670
28 Could a civilisation exist as 'space-nomads'? 2015-01-26T10:16:29.160
27 Humans born without legs: how would they thrive? 2014-10-07T21:59:16.473
27 How does a migratory species farm? 2016-10-17T17:05:41.180
27 If a civilization could plant only three crops, which ones would cover all nutritional needs? 2017-12-09T14:50:16.343
27 How would industrial civilizations contacting each other for the first time protect themselves from diseases? 2017-12-12T19:17:47.200
27 How would a medieval village protect themselves against dinosaurs? 2019-11-17T07:00:36.893
26 Why would a scientifically advanced future community believe in multiple gods? 2017-01-11T17:37:06.660
26 How do I make an ancient culture without borrowing from known ancient cultures? 2018-07-11T17:15:40.967
25 What is the minimum size of a self-sufficient industrial country? 2014-10-22T12:09:19.757
25 How can I have a permanent post-apocalyptic world? 2018-10-29T17:27:52.440
25 Need a specific event that wrecks the surface, allows the race to survive in bunkers, and affords an aftermath suitable for them to rebuild 2019-01-27T19:05:45.980
24 On a planet without seasons, how would people track years? 2014-10-15T22:52:04.210
24 How could a human civilization have happened to live underground, in Antarctica? 2016-05-26T10:24:17.770
24 On a world where everyone is nomadic, how does civilization start? 2017-09-11T07:18:47.160
24 In what sequence should an advanced civilization teach technology to medieval society to maximize rate of adoption? 2019-09-13T03:05:06.220
22 Could a civilization achieve spaceflight without inventing advanced weaponry along the way? 2014-10-03T15:03:18.113
22 How to sustain/create a 4 foot tall city? 2018-03-14T11:33:29.760
22 How advanced can a civilization get without zero? 2018-07-06T02:12:15.163
21 Could hunter-gatherers develop complex civilization? 2017-08-30T13:05:23.620
21 Numeral system for a species with 8 fingers 2018-01-08T05:51:03.027
20 How long would a single metropolis last if all other signs of human civilization vanish? 2016-08-19T14:14:09.080
20 Aliens and Us: Would they have any reason to interact with us? 2017-02-28T05:33:17.500
20 Does a world with domestic flying creatures (eg: dragons) needs cars, planes and ships? 2017-05-26T02:34:13.303
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 Units of measurement, especially length, when body parts vary in size among races 2019-08-14T19:37:18.210
19 How can I save a high-tech/no-spaceflight civilization against the wrath of non-technological gods? 2014-10-13T11:53:46.433
19 If 1 million people were plucked from the Earth today and put on a new planet, how long would it take for a civilization to arise? 2016-10-13T03:31:35.283
18 Does the Kardashev scale have points below zero? 2014-09-18T20:58:30.913
18 Advanced Technology in a Fireless World? 2016-09-12T08:30:17.877
18 Can existential crisis wipe out a civilization? 2016-11-25T01:42:13.063
18 How to enforce belief in technology as divine without an enforcing class 2018-02-13T01:29:32.127
17 How can a sapient species build an advanced civilization, while remaining on one continent? 2018-10-27T16:42:31.423
16 How important is fire? 2014-09-18T03:53:33.943
16 Is it feasible to have a nomadic space civilization? 2016-07-08T12:14:40.010
16 How does a migratory species advance past the Stone Age? 2016-10-25T17:21:52.527
16 Can estrogen be used to lower the criminal rate of a civilization? 2017-07-07T04:01:42.913
16 What secular civic space would pioneers build for small frontier towns? 2019-09-20T15:24:58.627
15 Can civilization development occur completely without faith? 2014-09-21T11:28:26.937
15 Entry requirements for a Type n civilization 2015-04-02T19:07:35.220
15 How can we extinguish a supernova? 2015-05-07T04:31:44.007
15 Can we extrapolate from island culture to planetary culture? 2017-09-12T14:09:30.520
15 How do forest-worshipping Indigenous Peoples engage in Agriculture? 2018-07-13T10:57:38.377
14 Why would a civilization want to contact with a hypothetical extraterrestrial civilization? 2014-09-17T09:30:16.667
14 Unsettled continent 2015-02-09T04:15:17.840
14 How long can the human civilization traces be detectable? 2015-09-11T23:58:11.767
14 What early tools might be devised on a planet where diamonds were abundant? 2017-08-16T01:36:08.227
14 How would a civilization adapt to handle a series of unkillable deadly people? 2020-01-23T01:51:59.120
13 Is psychohistory a practical leadership tool? 2016-02-17T21:45:06.490
13 How to knock down humanity? 2016-08-15T22:05:01.450
13 What types of technology would a sentient species without eyes develop to enable them to explore space? 2016-12-10T16:51:06.220
13 Atlantis and Sewage 2018-05-09T17:33:41.237
13 Human uses for megafauna besides food or traction? 2020-01-22T12:34:11.110
12 Could a civilization as advanced as humans exist on a planet/dwarf planet like Pluto? 2014-11-30T23:10:16.980
12 How can a world with constantly-moving nomads form? 2015-01-16T17:40:41.053
12 What determines whether or not tribes will form into larger groups? 2015-01-30T19:20:30.053
12 Can a civilization develop with only blind people? 2015-04-01T14:56:39.800
12 How do I populate a small, settled island for an RPG? 2015-09-21T17:55:52.123
12 Is it possible for subsequent Civilizations to develop on earth? 2016-02-11T14:50:45.650
12 A realistic human civilization where there are no religions at all at any time? 2017-12-07T09:12:20.880
12 What would a modern civilization look like if they aren't allowed to write? 2018-02-05T00:14:21.833
11 Materials in a tidal water world 2018-09-27T13:36:51.837
11 Preventing Technological Progression 2019-01-11T03:30:04.643
10 Future Society where all jobs have been abstracted into games 2015-07-29T21:14:43.370
10 What are important factors to take into consideration when building a timeline in order to design a world 2015-08-20T10:14:11.630
10 Adopt a new numeral system 2015-10-06T15:49:30.713
10 What would culture be like on a 1 Light Year Diameter Planet? 2016-06-04T08:50:59.103
10 How could a society be based off of the rules/conventions of an RPG? 2016-07-01T15:12:46.190
10 What would be the ideal composition of a newly founded society? 2016-08-21T13:14:26.177
10 How would a sapient species descended from felids become herbivorous? 2018-12-04T20:16:59.653
10 How advanced would human civilization get if it was destroyed by insects every 20 years? 2018-12-24T20:32:19.980
10 Could Giant Ground Sloths have been a good pack animal for the ancient Mayans? 2019-04-08T18:10:38.587
10 Could a society of Kaiju exist logically? 2019-11-04T05:09:34.060