User Luaan

133 votes

Accepted

My characters have been killing the same demons over and over again. How come the demons never adapt to them?

answered Apr 7, 2020 at 8:58

42 votes

Accepted

Is Cancer Biologically Universal?

reality-check biology creature-design

answered Jun 29, 2016 at 13:25

32 votes

Accepted

Can an earth-like world lack mineable iron?

science-based biology earth-like geology metals

answered Jan 23, 2018 at 9:35

30 votes

Will unattended nuclear power plants actually cause damage to their surroundings?

science-based reality-check apocalypse power-sources nuclear-power

answered Mar 14, 2016 at 13:28

28 votes

Would the atmosphere of an alien planet with the following mixture of gases be breathable to humans?

biology planets atmosphere chemistry

answered Jun 20, 2016 at 11:44

16 votes

Accepted

Could life form in outer space?

science-based biology reality-check astronomy

answered Oct 10, 2014 at 15:11

15 votes

Could a humanesque creature derive all its nutrients from drinking blood?

reality-check vampires blood

answered Oct 14, 2014 at 11:01

13 votes

Could you populate a hospitable planet with only a vial of DNA?

reality-check science-fiction genetics

answered Sep 12, 2016 at 14:30

12 votes

How large would a world have to be for a sailing ship to never make it past the horizon?

science-based planets

answered Mar 11, 2016 at 9:24

9 votes

Would cultured meat (artificial) render animal slaughter illegal?

society technological-development near-future ethics

answered Feb 20, 2017 at 11:36

8 votes

How do spaceship-mounted railguns not destroy the ships firing them?

reality-check spaceships weapon-mass-destruction railguns

answered Oct 19, 2016 at 8:16

8 votes

Could medieval age people have built a missile?

science-based technology medieval weapons

answered Jul 9, 2015 at 15:12

7 votes

What is the best way to use my two portals?

energy travel teleportation health

answered Jan 4, 2016 at 16:55

6 votes

What are the enabling factors for melee combat in modern or future settings?

warfare modern-age futurology

answered Oct 31, 2014 at 9:49

6 votes

Does it make sense for these space ships to have turrets?

reality-check space physics

answered Nov 2, 2016 at 11:49

6 votes

How could I have modern computers without GUIs?

reality-check computers

answered Dec 6, 2016 at 21:50

6 votes

How to mine the underside of a floating continent?

magic engineering mining

answered Sep 18, 2018 at 10:01

5 votes

Would asteroid mining be worth the trouble?

science-based space near-future mining

answered Mar 26, 2018 at 9:14

5 votes

What would Earth's seasons be like if the planet was rotating along a different axis?

reality-check earth-like astronomy

answered Feb 4, 2016 at 9:31

5 votes

The Benign Apocalypse

apocalypse aliens

answered Jun 5, 2015 at 14:16

4 votes

Time travel coordinates

time-travel teleportation

answered Jul 23, 2015 at 8:55

4 votes

Resources to justify long-distance space mining missions

planets economy space-colonization natural-resources

answered Apr 30, 2015 at 12:28

4 votes

What kind of spells would magicians cast in combat if the fuel to magic is very expensive

reality-check magic military tactics

answered Jan 19, 2017 at 12:30

4 votes

Could intelligent life have existed on Mars while it was habitable?

reality-check aliens mars

answered Oct 10, 2016 at 11:32

3 votes

What is the easiest and fastest way for a mage to prove they are casting a magic spell and that magic is real?

magic physics

answered Aug 3, 2021 at 9:30

3 votes

How to convince people to teleport themselves?

teleportation death

answered Jun 14, 2016 at 9:05

3 votes

Would a full body diamond armor and sword guarantee survival and victory against a medieval battalion?

warfare medieval materials

answered Sep 8, 2016 at 13:08

2 votes

Is there a precedent for inventing a new technology many years before anyone else?

science-based reality-check society technology genetics

answered Sep 22, 2016 at 8:31

2 votes

How could mankind of ancient times cause significant climate change?

environment climate alternate-earth

answered Jan 4, 2018 at 22:30

2 votes

Is there a reason to believe that programming languages are going to converge?

science-based futurology computers language

answered May 25, 2015 at 12:12

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41 Answers

My characters have been killing the same demons over and over again. How come the demons never adapt to them?

Is Cancer Biologically Universal?

Can an earth-like world lack mineable iron?

Will unattended nuclear power plants actually cause damage to their surroundings?

Would the atmosphere of an alien planet with the following mixture of gases be breathable to humans?

Could life form in outer space?

Could a humanesque creature derive all its nutrients from drinking blood?

Could you populate a hospitable planet with only a vial of DNA?

How large would a world have to be for a sailing ship to never make it past the horizon?

Would cultured meat (artificial) render animal slaughter illegal?

How do spaceship-mounted railguns not destroy the ships firing them?

Could medieval age people have built a missile?

What is the best way to use my two portals?

What are the enabling factors for melee combat in modern or future settings?

Does it make sense for these space ships to have turrets?

How could I have modern computers without GUIs?

How to mine the underside of a floating continent?

Would asteroid mining be worth the trouble?

What would Earth's seasons be like if the planet was rotating along a different axis?

The Benign Apocalypse

Time travel coordinates

Resources to justify long-distance space mining missions

What kind of spells would magicians cast in combat if the fuel to magic is very expensive

Could intelligent life have existed on Mars while it was habitable?

What is the easiest and fastest way for a mage to prove they are casting a magic spell and that magic is real?

How to convince people to teleport themselves?

Would a full body diamond armor and sword guarantee survival and victory against a medieval battalion?

Is there a precedent for inventing a new technology many years before anyone else?

How could mankind of ancient times cause significant climate change?

Is there a reason to believe that programming languages are going to converge?