Linked Questions

4
votes
3answers
1k views

How many people does it take to run a self sufficient colony [duplicate]

How many people would it take to to run a self sufficient colony? I'd say it would take from 20-1,000,000 to live comfortably and still be a colony. But I want to know if it's possible with less than ...
4
votes
3answers
371 views

When traveling to an alternate Earth, how many generations would you have to breed with the natives to prevent inbreeding?

A group of 35 superhumans from the future get trapped on the alternative Earth still in the Dark Ages. Banding together they take control of a small country and establish themselves up as kings and ...
3
votes
3answers
501 views

Long term living without sunlight

May be the wrong site, but researching for a writing project... What effect would there be on a group of humans living in a lightless and cramped environment (assume underground) for nearly 800 years, ...
2
votes
3answers
416 views

Travelling in space for 6000 years, how many persons are needed? [closed]

So a spaceship is on its way to a new planet. The crew needs to survive during 6000 years on board. They will not get any help and they need to survive on their own. How many persons would need to be ...
2
votes
3answers
274 views

If a major disaster wiped out most of humanity, how many survivors would there need to be in order for them to rebuild? [duplicate]

I have a story set about five thousand years after a major disaster reduced the world population from billions down to... well, that's the question. How low could it have gone, and still provide the ...
-5
votes
3answers
270 views

Future People on Earth [closed]

I watch the TV show The Last Man on Earth and there is only a handful of women and men living. In the show the few are trying to conceive. They haven't covered how eventually they will have to inbreed ...
4
votes
2answers
179 views

What is the minimum earth population required to keep up the current technologic state of the art long term?

I'm wondering what would be the minimum number of people living on earth required to keep our current level of technology, e.g., in each field the state-of-the-art. Many technologies have long ...
4
votes
2answers
176 views

How would a group of survivors with a rebel criminal get along stranded on an alien planet? [closed]

The rebel criminal committed something terrible that gave them their fate to be stranded on the planet. The other survivors believe that he is the one to blame since he's the only person from an anti-...
3
votes
2answers
275 views

How many people could disappear and leave a functioning society [closed]

This isn't strictly related to a writing project, but I have been lurking for a while and have been amazed by the different questions that the people here are able to answer. If there was a major ...
0
votes
2answers
220 views

A friend has an idea for a PA colony traveling to Proxima Centauri B but need help fleshing it out

So, my friend had an idea for a weird Post Apocalypse society traveling through space towards Proxima Centauri B, and she's trying to figure out where the population would be 50 and 100 years after ...
2
votes
1answer
164 views

How can waste be disposed of in an isolated system?

I have in mind a world where a small colony of humans are isolated within a cylindrical force field in a desolate land of clay. With no tools their only option is to dig and, upon finding food (...
2
votes
1answer
633 views

On a generation ship, How many different families would you have to have to prevent inbreeding [duplicate]

Outfitting an generation ship. How many unrelated people would you have to have in order to have a big enough genetic pool for mating to prevent inbreeding?
0
votes
1answer
2k views

What is the minimum number of people you need to have a diverse enough gene pool to last about 2 centuries? [duplicate]

Other questions have looked into founding successful colonies, meaning healthy populations that thrive indefinitely. However, many stories concern a colony that is discovered some specific (and ...
2
votes
0answers
94 views

How many people would it take to colonize Mars? [duplicate]

To ensure a self-sufficient colony, there would need to be enough people to ensure a diverse gene pool, a wide variety of technical experience, and enough bodies to work farms and such. How many ...
2
votes
0answers
163 views

What is the minimum viable population to avoid genetic decay? [duplicate]

There are a couple of other questions that get CLOSE to this one, but mine is much more basic. The other estimates are for colony size or country size, and these take into account technology, ...

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