User steverino

5 votes

If antimatter were common starship fuel, what could prevent it from being commonly weaponized?

answered Aug 31, 2018 at 16:49

1 vote

Are there any structural materials suitable for production underwater?

science-fiction underwater materials

answered Apr 19, 2018 at 11:40

0 votes

I'm stranded on an alien planet. How can I tell what's good to eat?

reality-check colonization

answered Nov 9, 2017 at 5:09

8 votes

Why would a large percent of an otherwise sane population regularly play a virtual game that could get them killed

reality-check society technology

answered Nov 9, 2017 at 4:35

1 vote

What would be the state of society without semiconductors?

science-based technological-development alternate-history electricity

answered Nov 6, 2017 at 5:31

-5 votes

Synthesizing fuels with excess energy

physics spaceships energy engineering

answered Nov 5, 2017 at 1:59

14 votes

Where do mining "dwarves" put all the stone?

mining

answered Nov 5, 2017 at 15:10

1 vote

What are the risks with massive banks of batteries/capacitors?

science-based energy explosions

answered Nov 5, 2017 at 9:29

2 votes

How to Effectively Collect and Recycle Space Junk?

science-based space-colonization space-debris

answered Nov 5, 2017 at 2:48

5 votes

Accepted

Detecting the mythical superman (Or a 100kg sack of meat)

science-based flight

answered Nov 3, 2017 at 20:53

5 votes

What could interstellar worlds have to trade with each other?

science-fiction

answered Nov 3, 2017 at 3:35

2 votes

How to preserve scientific knowledge following a major nuclear war

society technology worldbuilding-process worldbuilding-resources nuclear-war

answered Oct 30, 2017 at 12:35

2 votes

Long lifespans and risk aversion

society futurology medicine far-future

answered Oct 30, 2017 at 12:19

4 votes

Any benefits or problems on using a national I.D chip implant rather than an I.D card in a high tech society?

reality-check economy cybernetics

answered Oct 29, 2017 at 23:41

0 votes

Could a society attain 1800s technology if limited to using copper and bronze?

reality-check technology alternate-history technological-development metals

answered Oct 30, 2017 at 0:45

1 vote

What methods might an ancient civilization use to desalinate sea water?

science-based technology cities civilization water

answered Oct 30, 2017 at 0:09

0 votes

What kinds of remnants might be evidence of a previous civilisation?

reality-check post-apocalypse materials

answered Aug 23, 2017 at 17:42

1 vote

Would a galaxy-wide civilization have any reason to build a solar probe?

technology space

answered Aug 15, 2017 at 17:41

0 votes

How physically small can human intelligence get?

science-based computers nanotechnology intelligence

answered Jun 11, 2017 at 7:39

0 votes

How do you achieve the agricultural revolution without agriculture?

reality-check technology technological-development agriculture day-night

answered Jun 8, 2017 at 20:52

2 votes

What are the energy requirements of moving some of Venus' atmosphere to Mars?

science-based reality-check terraforming

answered Jun 7, 2017 at 18:13

1 vote

Advanced alien insect long range communication

space communication insects hive

answered Jun 7, 2017 at 18:04

25 votes

Could extreme climate zones exist next to each other?

science-based reality-check geography

answered Jun 6, 2017 at 14:47

3 votes

What's a good method for generating an artificial gravity field for both the exterior and interior surfaces of a hollowed asteroid?

space science-fiction gravity space-colonization

answered Jun 6, 2017 at 19:41

7 votes

Creating a living currency

reality-check creature-design economy currency

answered Jun 6, 2017 at 19:33

2 votes

What realistic way could limit an FTL drive to only travelling between stars?

science-based science-fiction faster-than-light

answered Jun 5, 2017 at 9:49

0 votes

Avoiding Violation of Causality with Stable Wormholes

science-based space science-fiction wormholes

answered Jun 3, 2017 at 0:33

7 votes

How to not get caught milking the stock market with a time machine

time-travel

answered Jun 3, 2017 at 0:01

0 votes

Can underwater Atlanteans make explosives without coming onto dry land?

underwater merfolk explosions

answered Jun 1, 2017 at 4:05

4 votes

Can an android be "immune" to electromagnetic forces?

magnetism android superconductors

answered May 31, 2017 at 21:05

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33 Answers

If antimatter were common starship fuel, what could prevent it from being commonly weaponized?

Are there any structural materials suitable for production underwater?

I'm stranded on an alien planet. How can I tell what's good to eat?

Why would a large percent of an otherwise sane population regularly play a virtual game that could get them killed

What would be the state of society without semiconductors?

Synthesizing fuels with excess energy

Where do mining "dwarves" put all the stone?

What are the risks with massive banks of batteries/capacitors?

How to Effectively Collect and Recycle Space Junk?

Detecting the mythical superman (Or a 100kg sack of meat)

What could interstellar worlds have to trade with each other?

How to preserve scientific knowledge following a major nuclear war

Long lifespans and risk aversion

Any benefits or problems on using a national I.D chip implant rather than an I.D card in a high tech society?

Could a society attain 1800s technology if limited to using copper and bronze?

What methods might an ancient civilization use to desalinate sea water?

What kinds of remnants might be evidence of a previous civilisation?

Would a galaxy-wide civilization have any reason to build a solar probe?

How physically small can human intelligence get?

How do you achieve the agricultural revolution without agriculture?

What are the energy requirements of moving some of Venus' atmosphere to Mars?

Advanced alien insect long range communication

Could extreme climate zones exist next to each other?

What's a good method for generating an artificial gravity field for both the exterior and interior surfaces of a hollowed asteroid?

Creating a living currency

What realistic way could limit an FTL drive to only travelling between stars?

Avoiding Violation of Causality with Stable Wormholes

How to not get caught milking the stock market with a time machine

Can underwater Atlanteans make explosives without coming onto dry land?

Can an android be "immune" to electromagnetic forces?