User March Ho

67 votes

Could a really fast man catch a bullet?

answered Sep 5, 2018 at 2:49

48 votes

What single change would have given the best chance for the Axis to win World War 2?

science-based alternate-history

answered Dec 3, 2015 at 0:13

48 votes

How to conquer a country, forever

politics alternate-worlds

answered Sep 3, 2015 at 0:25

34 votes

A realistic explanation of a typical Plague-inc "infect everyone before you start killing them" strategy

internal-consistency biology creature-design xenobiology diseases

answered Jul 3, 2017 at 21:50

31 votes

How would I know if I were a 1 mm tall robot?

science-based

answered Apr 25, 2016 at 23:18

30 votes

Currency that can stand extreme temperatures

internal-consistency magic currency

answered Jul 20, 2016 at 23:16

25 votes

Accepted

What weapons would be effective at a microscopic level?

weapons microorganisms microscopic

answered Mar 8, 2016 at 15:33

24 votes

How can I make a net beneficial genetic trait occur only in a small fraction of the population, sustained?

science-based internal-consistency biology evolution genetics

answered Jan 18, 2015 at 19:16

24 votes

Are there any good uses for infinite grass and potatoes

magic economy flora medieval

answered Feb 23, 2015 at 11:52

22 votes

If an FTL spacecraft entered Earth orbit, how long would it take for humans to build a FTL spacecraft?

space humans earth faster-than-light

answered Feb 17, 2016 at 4:34

21 votes

Accepted

Burning down a mountain

internal-consistency magic dragons

answered Feb 24, 2015 at 20:41

20 votes

Accepted

How many chickens would it take to overthrow a farmer?

internal-consistency society fauna

answered Dec 16, 2014 at 14:33

19 votes

Kaijuu-like monsters killing humans: What is their viable reason to do so?

science-fiction mythical-creatures

answered Aug 27, 2016 at 16:22

17 votes

Planetary Scale Artworks

planets space

answered Dec 16, 2014 at 13:50

15 votes

Accepted

What issues as a result of square-cube law would a human scaled to the size of an ant face?

science-based internal-consistency

answered Dec 24, 2014 at 14:26

15 votes

How to effectively slow down a ship about to shoot through the Solar System at 0.6c?

science-based science-fiction space-travel

answered Apr 26, 2016 at 2:36

14 votes

What might cause (physically) large predatory birds to form large (in terms of numbers) flocks?

internal-consistency creature-design avian

answered Jun 4, 2017 at 14:21

14 votes

Would intelligent life evolve any other body plan than humanoid?

science-based evolution aliens science-fiction

answered Sep 8, 2015 at 13:15

13 votes

Which shape for an infinite world with usual sun cycles?

magic environment nonspherical-worlds

answered Oct 12, 2015 at 7:36

13 votes

How to explain a livable planet the size of Jupiter in a fantasy universe

science-based planets magic

answered Dec 25, 2014 at 17:06

13 votes

What would the problems with / consequences of a torus shaped planet be?

planets evolution gravity water-bodies nonspherical-worlds

answered Dec 13, 2014 at 19:31

12 votes

Using lasers to stop bullets

warfare futurology lasers kinetic-weapons

answered Mar 8, 2015 at 8:42

12 votes

Any reasons for a primal aquatic race to build land-based villages?

culture cities underwater fantasy-races

answered Feb 9, 2016 at 18:14

11 votes

How do sorcerers attempt to prevent common people, or other sorcerers, from duplicating their spell scrolls?

magic medieval

answered Dec 18, 2015 at 1:44

11 votes

Personal fart power - is it viable?

technology hard-science futurology

answered Jul 26, 2015 at 5:34

10 votes

How to make a 2D image which kills people who see it?

weapons

answered Aug 6, 2015 at 6:53

10 votes

Accepted

How far above the pole would you need to be for constant sunlight?

planets earth day-night

answered Mar 1, 2015 at 15:17

10 votes

Accepted

Defeating the Snakebot of Doom

science-based military-defense modern-age

answered Mar 2, 2016 at 12:53

9 votes

What would happen to the internet if Google disappeared?

near-future internet

answered Jun 17, 2016 at 5:30

9 votes

Why terraform at all?

space-colonization terraforming

answered Jan 25, 2016 at 2:16

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75 Answers

Could a really fast man catch a bullet?

What single change would have given the best chance for the Axis to win World War 2?

How to conquer a country, forever

A realistic explanation of a typical Plague-inc "infect everyone before you start killing them" strategy

How would I know if I were a 1 mm tall robot?

Currency that can stand extreme temperatures

What weapons would be effective at a microscopic level?

How can I make a net beneficial genetic trait occur only in a small fraction of the population, sustained?

Are there any good uses for infinite grass and potatoes

If an FTL spacecraft entered Earth orbit, how long would it take for humans to build a FTL spacecraft?

Burning down a mountain

How many chickens would it take to overthrow a farmer?

Kaijuu-like monsters killing humans: What is their viable reason to do so?

Planetary Scale Artworks

What issues as a result of square-cube law would a human scaled to the size of an ant face?

How to effectively slow down a ship about to shoot through the Solar System at 0.6c?

What might cause (physically) large predatory birds to form large (in terms of numbers) flocks?

Would intelligent life evolve any other body plan than humanoid?

Which shape for an infinite world with usual sun cycles?

How to explain a livable planet the size of Jupiter in a fantasy universe

What would the problems with / consequences of a torus shaped planet be?

Using lasers to stop bullets

Any reasons for a primal aquatic race to build land-based villages?

How do sorcerers attempt to prevent common people, or other sorcerers, from duplicating their spell scrolls?

Personal fart power - is it viable?

How to make a 2D image which kills people who see it?

How far above the pole would you need to be for constant sunlight?

Defeating the Snakebot of Doom

What would happen to the internet if Google disappeared?

Why terraform at all?