Top Questions

2 votes
2 answers
33 views

Why do the plants glow?

1 vote
3 answers
197 views

How does a regenerator keep their memories?

11 votes
9 answers
2k views

How does an explorer civilization survive the Dark Forest Scenario?

2 votes
1 answer
62 views

In a magic system where smoking live beings boosts your power, is it probable that lung cancer spreads inevitably?

4 votes
4 answers
1k views

How would one design a superhuman?

6 votes
5 answers
2k views

How many distinct colors would tetrachromatic birds have?

17 votes
16 answers
3k views

Can "innate" magic exist without fostering elitism?

6 votes
1 answer
350 views

Black powder Daisy revolver: possible?

13 votes
3 answers
2k views

How would the "Hardness vs Toughness" dynamic of gems apply if it were possible to make shields out of them?

14 votes
8 answers
2k views

Industrial applications of high gravity

7 votes
7 answers
3k views

A canal between two rivers

3 votes
6 answers
308 views

What would the societal effects be, generally of inhabited worlds having time pass at significantly different rates [closed]

9 votes
12 answers
5k views

Valid reason for not having plate armor in early medieval, low-magic fantasy setting?

11 votes
10 answers
4k views

How to efficiently transport troops from orbit

2 votes
2 answers
460 views

How could a speedster function in real life. Part 1:Acceleration

16 votes
12 answers
5k views

Why can't the alien's particle shield be replicated despite using common elements?

6 votes
1 answer
207 views

Emotive Plate Eyes

2 votes
1 answer
105 views

Could these Tectonic Plates produce my map's landforms?

8 votes
15 answers
3k views

Hiding a star cluster

6 votes
1 answer
314 views

Could black holes be used to warp a laser transmission back to the point of origin?

10 votes
9 answers
4k views

What is the most logical way to have my dragon breathe lightning? [closed]

0 votes
5 answers
142 views

How do you establish commonly understood terms for "yes" and "no" with beings/aliens who communicate via a single medium/form of energy?

6 votes
9 answers
2k views

Industrial Geothermal smelting power

28 votes
19 answers
7k views

Is it possible to live without killing?

3 votes
1 answer
132 views

What is the minimum level of technology needed to explore a large flood volcanism event?

7 votes
2 answers
2k views

Could dragons be cold-blooded?

21 votes
9 answers
4k views

What can be used as a galaxy-wide time reference?

14 votes
7 answers
2k views

What effect do caves have on music played in them?

1 vote
3 answers
151 views

How to transport troops from surface to orbit?

3 votes
1 answer
97 views

Procedural Atmosphere for exoplanet - pseudorealistic composition, pressure etc

11 votes
6 answers
3k views

Is this diesel gun concept feasible?

8 votes
4 answers
2k views

Is it possible for an animal to have a plant stage in its life cycle? [duplicate]

7 votes
7 answers
2k views

How can I make two hearts work?

-2 votes
1 answer
66 views

Ancient Mars & Human Habitation

7 votes
2 answers
1k views

How might civilization develop if hunter-gatherers and/or early agrarian civilizations had access to highly advanced technology? [closed]

10 votes
8 answers
4k views

Could Mermaids Tear a Warship's Planking?

7 votes
7 answers
2k views

Do (supermassive) black holes rotate? [closed]

6 votes
5 answers
2k views

Fake Legendary Sword in Stone scams, how to make them believable and unpullable in a world of magic? [closed]

12 votes
14 answers
4k views

How could jet fighter development be delayed by about 15-17 years without impacting the development of piston engined aircraft?

11 votes
10 answers
3k views

Is it reasonable for the development of faster-than-light travel to significantly slow the development of machine learning technology? [closed]

2 votes
1 answer
125 views

Is my climate map plausible?

17 votes
20 answers
6k views

What is necessary for an "Apocalypse" to actually set a civilization (e.g., humankind) back to the stone age?

3 votes
2 answers
1k views

What is the minimum size of a natural satellite needed to shield radio telescope signals from its planet?

1 vote
0 answers
52 views

The calculation of sky surface brightness based on the apparent magnitude of the light source [closed]

11 votes
4 answers
3k views

What would be easily missed, but undeniable, proof of life from non-advanced detectors?

0 votes
1 answer
126 views

Determining the qualities of a quill based on the qualities of the bird [closed]

16 votes
8 answers
4k views

Would creatures that drink liquid instead of eating have a stomach?


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