User Green

17

124

votes

9

answers

36k

views

Releasing a T-Rex into a modern ecosystem wouldn't be that bad, right?

Dec 14 '17 at 10:42 Community♦ 1

9

61

votes

17

answers

11k

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What would it take to build a ship capable of crossing the Pacific?

reality-check hard-science medieval ships shipbuilding

Apr 27 '19 at 10:33 vsz 9,853

11

56

votes

16

answers

11k

views

Selling the right to kill one's convicted abuser: how could an NGO make this profitable?

Dec 18 '18 at 22:03 Community♦ 1

14

50

votes

15

answers

11k

views

What good are herbivores in an animal army?

reality-check magic warfare fauna

Jun 4 '16 at 3:48 TrEs-2b 54.2k

14

42

votes

5

answers

4k

views

Why does my species tock like it ticks?

creature-design evolution psychology

Dec 30 '16 at 3:43 Community♦ 1

8

41

votes

28

answers

10k

views

Why buy tech from the future?

technology economy time-travel near-future

Dec 15 '18 at 14:33 Community♦ 1

16

40

votes

5

answers

9k

views

Only Three Books: Restarting Physics after civilization collapses [closed]

physics civilization renaissance

Jan 13 '18 at 13:16 Community♦ 1

8

37

votes

2

answers

6k

views

Only Three Books: Restarting Chemistry after civilization collapses

civilization chemistry renaissance

Jan 13 '18 at 13:15 Community♦ 1

4

34

votes

12

answers

8k

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How would one design an undetectable nuke to hit the Moon with?

science-based moons nuclear-weapons space-warfare

Nov 22 '18 at 4:13 Community♦ 1

1

32

votes

18

answers

7k

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What is the best apex predator to thin the zombie herds?

fauna zombies

Feb 6 '18 at 15:55 Keith Morrison 15.6k

1

31

votes

3

answers

6k

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A pack of velociraptors in a modern ecosystem, that would be pretty horrible, right?

science-based reality-check ecology dinosaurs

Dec 13 '17 at 18:16 kingledion 83k

3

30

votes

5

answers

2k

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How to test a time machine?

time-travel spacetime-dimensions

Feb 15 '20 at 10:15 Community♦ 1

3

30

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10

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7k

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How do I manage memetic infection while time traveling?

time-travel information

Sep 8 '18 at 8:31 Community♦ 1

3

28

votes

16

answers

4k

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Permitting Customizable UI for a Spaceship's Systems

reality-check spaceships

May 16 '18 at 19:36 Jan Hudec 296

7

27

votes

6

answers

6k

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What would it take to be an Illuminati-like group?

science-based reality-check near-future secret-society

Feb 17 '17 at 13:26 Community♦ 1

17

26

votes

6

answers

1k

views

How can I make the cultural evolution of my world believable?

culture worldbuilding-process worldbuilding-resources anthropology

Oct 27 '16 at 14:39 inappropriateCode 5,770

12

24

votes

3

answers

2k

views

How to evolve biological radios?

science-based xenobiology radio

Oct 7 '15 at 13:32 Community♦ 1

2

23

votes

17

answers

7k

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How to defend against the “convince-me” ray gun?

technology psychology

Jul 11 '16 at 22:59 JDługosz 66.1k

7

22

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11

answers

5k

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What if parents didn't “own” their children?

Dec 27 '17 at 3:23 Monica Cellio 18.9k

13

22

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6

answers

3k

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How do I make the political evolution of my world believable?

politics worldbuilding-process

Sep 20 '15 at 22:27 Brythan 24.7k

1

21

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6

answers

5k

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An iron rain to starve a planet

reality-check atmosphere geology extinction

Aug 20 '18 at 19:32 kingledion 83k

4

21

votes

6

answers

3k

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Exploration of a 50 mile high mountain

technology space exploration

Nov 4 '17 at 19:05 Community♦ 1

1

20

votes

8

answers

3k

views

Initial conditions for a fluorine hellscape

planets chemistry solar-system

Mar 3 at 5:48 H. H. 131

2

18

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6

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3k

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Armor for Giant Crabs to Defeat Explosive Bites from Predators

science-based evolution weapons xenobiology armors

May 17 '18 at 19:04 Thucydides 95k

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18

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How do I manage disease risk while time traveling?

time-travel medicine

Nov 27 '17 at 18:23 Community♦ 1

17

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7

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Effectiveness of Nuclear Fire in Space

science-based warfare space

May 23 '17 at 5:57 Community♦ 1

2

15

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5

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How to render a large percentage of humans infertile?

science-based humans reproduction

Apr 28 '18 at 16:17 Community♦ 1

2

14

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9

answers

5k

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Would evolution select for mermaids without breasts?

reality-check creature-design fantasy-races merfolk sea-creatures

Aug 9 '19 at 23:41 Community♦ 1

2

14

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answers

1k

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The evolution of neon kittens

science-based biology evolution creature-design earth

Mar 10 '16 at 12:55 Community♦ 1

3

14

votes

3

answers

3k

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How would I design a human body for zero gravity?

space humans zero-gravity

Sep 2 '15 at 11:47 Community♦ 1

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80 Questions

Releasing a T-Rex into a modern ecosystem wouldn't be that bad, right?

What would it take to build a ship capable of crossing the Pacific?

Selling the right to kill one's convicted abuser: how could an NGO make this profitable?

What good are herbivores in an animal army?

Why does my species tock like it ticks?

Why buy tech from the future?

Only Three Books: Restarting Physics after civilization collapses [closed]

Only Three Books: Restarting Chemistry after civilization collapses

How would one design an undetectable nuke to hit the Moon with?

What is the best apex predator to thin the zombie herds?

A pack of velociraptors in a modern ecosystem, that would be pretty horrible, right?

How to test a time machine?

How do I manage memetic infection while time traveling?

Permitting Customizable UI for a Spaceship's Systems

What would it take to be an Illuminati-like group?

How can I make the cultural evolution of my world believable?

How to evolve biological radios?

How to defend against the “convince-me” ray gun?

What if parents didn't “own” their children?

How do I make the political evolution of my world believable?

An iron rain to starve a planet

Exploration of a 50 mile high mountain

Initial conditions for a fluorine hellscape

Armor for Giant Crabs to Defeat Explosive Bites from Predators

How do I manage disease risk while time traveling?

Effectiveness of Nuclear Fire in Space

How to render a large percentage of humans infertile?

Would evolution select for mermaids without breasts?

The evolution of neon kittens

How would I design a human body for zero gravity?