User David R

24 votes

Accepted

Can mountains form in rings?

answered Mar 3 at 15:41

22 votes

Accepted

Is stone age humanism possible?

answered Apr 11, 2021 at 14:33

22 votes

How would you make a door that could still be opened a million years later?

answered Jul 9, 2022 at 15:46

20 votes

Medieval Footwear in swamplands

answered Jul 8, 2022 at 14:12

16 votes

Is it possible to have very different sea levels?

answered Mar 31 at 14:20

15 votes

Everything has a tiny nuclear reactor in it. How much of a concern are illegal nuclear bombs?

answered Jul 4 at 14:34

13 votes

Accepted

What would provoke Elon Musk's humanoid robots to revolt against their masters?

answered Jul 9, 2022 at 15:54

13 votes

Is it possible for a fairly large community to remain hidden in Scandinavia until the start of the 20th century?

answered Sep 29, 2022 at 14:37

11 votes

How smooth would Earth's oceans be if quickly frozen?

answered Aug 8, 2021 at 14:02

10 votes

Why is this less profitable for an adventurer to craft and then sell an artefact, rather than to sell ingredients needed to craft the artefact?

answered Jul 12, 2021 at 14:11

10 votes

What would an "excessively sober" dwarf look like if they need alcohol to function?

answered Oct 21, 2022 at 14:43

10 votes

Would improvised motor vehicles be feasible a century after the fall of industrial civilization?

answered Mar 24, 2023 at 15:21

9 votes

How soon after first contact could an advanced civilization make large financial transactions on Earth?

answered Mar 27, 2023 at 14:23

9 votes

What would happen if lightning couldn't strike the ground due to a layer of unconductive gas?

answered Aug 21, 2023 at 14:46

9 votes

Would gears made of stone work?

answered Jun 28, 2021 at 14:28

8 votes

How could criminals make getaways in a world where public transportation is most common?

answered Jul 17, 2021 at 14:29

8 votes

Accepted

EMP that causes all mobile phones to stop working

answered Jun 25, 2023 at 14:14

8 votes

How fast would supplies become rare in a post-electric world?

answered Dec 5, 2022 at 16:12

8 votes

How realistic would it be for the son of the emperor to go to college undercover?

answered Aug 6, 2022 at 14:43

8 votes

Why can't the military stop my hidden pirate haven from illegal gambling and smuggling?

answered Mar 4, 2022 at 15:20

8 votes

What could cause a society to collectively forget about an event?

answered May 13 at 16:31

7 votes

Why would a highly advanced society still engage in extensive agriculture?

answered Jul 29, 2023 at 15:04

7 votes

Is there any reason a society might use electric boilers and steam engines in their trains rather than electric motors?

answered Apr 23, 2023 at 14:27

7 votes

Accepted

How would this island tribe survive when a tornado meets a volcano?

answered Sep 15, 2021 at 23:53

7 votes

Why would very large trucks regularly be used for logistics?

answered Sep 26, 2021 at 14:24

7 votes

Why would civilizations have no major technological development even after ten thousand years?

answered Oct 16, 2021 at 14:58

6 votes

How to avoid children when they are magically attracted to you?

answered Aug 9, 2021 at 14:13

6 votes

Why would a rural village need rope in times of famine?

answered Aug 3, 2022 at 16:15

6 votes

Computing technology in a world with only Gold, Copper, and Silver

answered Oct 31, 2023 at 15:34

6 votes

Is it possible to live "off-grid" in the modern world while still having access to a full range of facilities

answered Feb 8 at 15:13

Stack Exchange Network

161 Answers

Can mountains form in rings?

Is stone age humanism possible?

How would you make a door that could still be opened a million years later?

Medieval Footwear in swamplands

Is it possible to have very different sea levels?

Everything has a tiny nuclear reactor in it. How much of a concern are illegal nuclear bombs?

What would provoke Elon Musk's humanoid robots to revolt against their masters?

Is it possible for a fairly large community to remain hidden in Scandinavia until the start of the 20th century?

How smooth would Earth's oceans be if quickly frozen?

Why is this less profitable for an adventurer to craft and then sell an artefact, rather than to sell ingredients needed to craft the artefact?

What would an "excessively sober" dwarf look like if they need alcohol to function?

Would improvised motor vehicles be feasible a century after the fall of industrial civilization?

How soon after first contact could an advanced civilization make large financial transactions on Earth?

What would happen if lightning couldn't strike the ground due to a layer of unconductive gas?

Would gears made of stone work?

How could criminals make getaways in a world where public transportation is most common?

EMP that causes all mobile phones to stop working

How fast would supplies become rare in a post-electric world?

How realistic would it be for the son of the emperor to go to college undercover?

Why can't the military stop my hidden pirate haven from illegal gambling and smuggling?

What could cause a society to collectively forget about an event?

Why would a highly advanced society still engage in extensive agriculture?

Is there any reason a society might use electric boilers and steam engines in their trains rather than electric motors?

How would this island tribe survive when a tornado meets a volcano?

Why would very large trucks regularly be used for logistics?

Why would civilizations have no major technological development even after ten thousand years?

How to avoid children when they are magically attracted to you?

Why would a rural village need rope in times of famine?

Computing technology in a world with only Gold, Copper, and Silver

Is it possible to live "off-grid" in the modern world while still having access to a full range of facilities