Skip to main content
neph's user avatar
neph's user avatar
neph's user avatar
neph
  • Member for 9 years, 9 months
  • Last seen more than a month ago
52 votes
17 answers
4k views

What would be the most effective way of keeping a psychopath with a spaceship from wreaking severe havoc in a suicide crash?

29 votes
12 answers
7k views

Is there any way to truly hide a spaceship?

26 votes
3 answers
11k views

What is the maximum size of a flying creature?

19 votes
7 answers
2k views

Methods of containing/combating "grey goo" Von Neumann nanomachines?

14 votes
4 answers
2k views

What political structure would develop within an interplanetary civilization?

13 votes
5 answers
1k views

How would a completely urbanized city-planet be maintained?

12 votes
5 answers
3k views

Why would a complete urbanized city-planet exist?

12 votes
5 answers
1k views

Could computing be developed in a pre-refining society?

11 votes
5 answers
1k views

How would a completely urbanized city-planet support its population?

10 votes
3 answers
853 views

How would the global environment of a completely urbanized city-planet be affected?

2 votes
3 answers
280 views

What social structure would be developed by an intelligent species with distinct functional physical differences?

1 vote
4 answers
210 views

What could cause a society to develop with large economic differences between classes while the discussion of money is taboo?