User Mołot

110 votes

11 answers

36k views

This sword is forged from meteorite iron - but how is that any good?

asked Jan 23, 2018 at 15:13

36 votes

21 answers

5k views

What would stop a company able to sell lifespan expansions from ruling the world?

asked Jan 28, 2015 at 10:04

35 votes

6 answers

6k views

What's the smallest reasonable natural planet or moon with Earth-like surface gravity?

asked Apr 3, 2017 at 8:52

35 votes

7 answers

5k views

Can a radioactive moon affect life on a planet?

asked Feb 1, 2018 at 9:54

25 votes

10 answers

3k views

What's the biggest reasonable natural planet or moon with Earth-like surface gravity?

asked Nov 5, 2017 at 12:10

24 votes

14 answers

5k views

How can AI know that all humans are dead?

asked Apr 14, 2022 at 8:44

19 votes

5 answers

4k views

Making stillsuits less fantasy - how to dump the heat?

asked Nov 2, 2021 at 9:50

18 votes

10 answers

2k views

Is there a way to have coal but not oil?

asked Jul 31, 2017 at 6:16

15 votes

3 answers

2k views

Plastic and oil eating microbes apocalypse part 1 - How fast can they spread?

asked Dec 10, 2018 at 11:01

11 votes

1 answer

3k views

Could a gas giant with layer similar to Earth atmosphere exist?

asked Aug 19, 2015 at 12:09

11 votes

5 answers

3k views

How heavy does a "city" for two thousand people need to be?

asked Nov 15, 2023 at 0:01

10 votes

14 answers

3k views

What are minimal changes to make truncated pyramid-shaped megabuildings a thing?

asked Jun 9, 2021 at 11:05

9 votes

3 answers

306 views

Safely exiting zero-tau capsule

asked Oct 22, 2018 at 20:21

6 votes

9 answers

648 views

What change to laws of nature could disable modern technology, but allow nature as we know it? Or is it impossible?

asked Nov 10, 2016 at 13:28

Stack Exchange Network

14 Questions

This sword is forged from meteorite iron - but how is that any good?

What would stop a company able to sell lifespan expansions from ruling the world?

What's the smallest reasonable natural planet or moon with Earth-like surface gravity?

Can a radioactive moon affect life on a planet?

What's the biggest reasonable natural planet or moon with Earth-like surface gravity?

How can AI know that all humans are dead?

Making stillsuits less fantasy - how to dump the heat?

Is there a way to have coal but not oil?

Plastic and oil eating microbes apocalypse part 1 - How fast can they spread?

Could a gas giant with layer similar to Earth atmosphere exist?

How heavy does a "city" for two thousand people need to be?

What are minimal changes to make truncated pyramid-shaped megabuildings a thing?

Safely exiting zero-tau capsule

What change to laws of nature could disable modern technology, but allow nature as we know it? Or is it impossible?