User mouviciel

8 votes

What are the social implications of discovering a formula for immortality?

answered Nov 25, 2014 at 8:53

8 votes

A continent lost underwater?

answered Jan 23, 2015 at 8:55

7 votes

Von Neumann probes: feasible or not, now?

answered Dec 9, 2014 at 14:22

5 votes

How does 15th century beancurd delivery work?

answered Jan 12, 2021 at 11:57

4 votes

How soon will the first underwater cities be built?

answered Nov 27, 2014 at 15:41

3 votes

How would E-Commerce be affected in case of an Embargo?

answered Nov 4, 2016 at 12:05

3 votes

Killing all the explorers

answered Dec 17, 2014 at 8:15

3 votes

An interplanetary coordinate system

answered Jan 16, 2015 at 14:27

3 votes

High Speed High Tech Stealth Transportation in a Medieval Setting

answered Nov 30, 2017 at 16:10

2 votes

Shooting an energy beam into the Sun (from the Earth) in order to destroy it

answered Dec 12, 2014 at 19:05

1 vote

Can lava still be red hot liquid underwater?

answered Jul 25, 2017 at 9:20

1 vote

What will our great-grandchildren play with?

answered Jan 19, 2015 at 10:47

0 votes

The erosion problem on floating islands

answered Jul 21, 2021 at 12:40

0 votes

Could an accidental fire in a modern city without another disaster at the same time burn down the entire city?

answered Jun 22, 2017 at 14:58

0 votes

Technology that steals memories

answered Jun 29, 2017 at 12:26

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15 Answers

What are the social implications of discovering a formula for immortality?

A continent lost underwater?

Von Neumann probes: feasible or not, now?

How does 15th century beancurd delivery work?

How soon will the first underwater cities be built?

How would E-Commerce be affected in case of an Embargo?

Killing all the explorers

An interplanetary coordinate system

High Speed High Tech Stealth Transportation in a Medieval Setting

Shooting an energy beam into the Sun (from the Earth) in order to destroy it

Can lava still be red hot liquid underwater?

What will our great-grandchildren play with?

The erosion problem on floating islands

Could an accidental fire in a modern city without another disaster at the same time burn down the entire city?

Technology that steals memories