user avatar
user avatar
user avatar
Mark Ripley
  • Member for 6 years, 3 months
  • Last seen more than a month ago
  • Oregon, USA
3 votes

What kind of propulsion system would work in the air and underwater?

3 votes

What Uses Will Chompers Have In Medieval Society?

1 vote

How would ant-sized humans be able to Blacksmith Metals Safely?

29 votes

An environment where round beds are easier to build than rectangular

4 votes

Realistic cryosleep with short or no wake-up protocol?

2 votes

Can the collapse of capitalism trigger space colonization?

0 votes

Side effects of a time altering device

1 vote

Is there a reason why similar or the same musical instruments would develop?

-2 votes

How to scientifically explain the concept of "Saving" and "Loading"?

5 votes

How do I explain checkpoints without magic?

3 votes

How do you set up a long term colony on Mercury

1 vote

Cyberpunk dystopia mixed with Roaring Twenties

3 votes

How might a collective such as The Borg develop?

2 votes

What choice of magic arrows would be most useful against modern military

1 vote

How would immersive cinemas work?

10 votes
Accepted

What can I do to make a Bartering system stable?

4 votes

Lembas bread (2000 Calories per bite)

2 votes
Accepted

What good reason to raise an army of super-clones suffering from acute dementia?

15 votes

Does mirror armour work against laser guns?

0 votes

How do I wage war against a collective consciousness?

9 votes
Accepted

Is it possible to transform Jupiter into micro-star?

6 votes

How to let a Whale urh... fly?

0 votes

What are some of the reasons for a river to split?

1 vote

Can a robot track someone by their DNA?

3 votes

How could water breathing animals have a warm-blooded level of metabolism?

18 votes

What would make scientists realize they were on a flat world?

8 votes

How could a species survive on just luring in and eating humans?

4 votes

How to make food last indefinitely

1 vote

What form of transmission for zombies would be most effective?

10 votes
Accepted

Soap as the backbone of civilization