Linked Questions

107
votes
16answers
14k views

How many humans can I abduct without getting noticed?

Humans as Pets is now a thing. But not for AI (as in the linked question) but for the aliens. This celebrity was seen with their human pet and now every alien kid is begging their parent to get one ...
45
votes
13answers
14k views

Could humanity survive if all except a few males died in a plague?

Tomorrow, a sudden airborne plague comes around that kills nearly all human males - women are unaffected. The UN and different nations try their hardest but fail to find a cure. There are riots and ...
39
votes
10answers
56k views

How many people are required for a healthy re-population of the Earth (Post-Apocalypse)?

In my particular Earth, much has remained after the human-killing virus, and nature is thriving - even taking over the cities. It's beautiful. But I have separated the healthy populace in orbit ...
25
votes
7answers
6k views

What is the minimum size of a self-sufficient industrial country?

Imagine there is a country in which there are all important natural resources (oil, gas, metal ores, wood, etc.) in their natural form and which lies in a temperate climate region. There may be some ...
24
votes
10answers
12k views

Could human civilization live 150 years in a nuclear-powered aircraft carrier colony without resorting to mass killing/ cannibalism?

An un-treatable virus starts infecting and killing people. Societies are on the brink of collapse, and it is decided the best way to save the most amount of people is to move everyone who can fit into ...
24
votes
6answers
3k views

How many people need to be born every 8 years to sustain population?

So I'm doing some worldbuilding for a small, isolated village on the coast. The winters are harsh, but making sure everybody has enough food generally isn't an issue because they have good trade with ...
15
votes
3answers
1k views

Repopulating humans AND zombies

So most zombie apocalypse stories involve wiping out 99.9% of the human race and having a small minority survive to try and keep living. But, let's say I want society as we know it to collapse, but I ...
14
votes
5answers
4k views

Colonizing a planet: how much food would we need to bring?

Assuming that the planet is 20 light years away (so back and forth trips would be impractical) we have no clue whether there is any edible life forms on the new planet hibernation (freezing/thawing ...
11
votes
12answers
4k views

How plausible is a system of clans of pure-blood wizards?

In this medieval world, I want to set up a clan system that builds up every kingdom. Every kingdoms will have at least 3-4 big clans/families, each is unique to the theme of the magic they use. For ...
9
votes
7answers
4k views

What is a reasonable amount of population growth for 900 years?

Starting with about 500 humans and allowing for 900 years to pass, about how many people would there be at the end? (Just asking for a rough estimate, maybe a range.) Assuming: People are generally ...
8
votes
3answers
644 views

Planetary Colonisation; how to retain ethno-racial appearances over millennia?

I was reading this question last night about people of colour in fantasy stories. I've read so many fantasy stories where any mention of colour is associated with the negative/animalistic/barbaric ...
6
votes
3answers
3k views

How small can a population be with regard to genetic diversity?

I'm working on creating a species that favours small families for a number of reasons, and have no interest in 'breeding as much as possible'. As a consequence, their population size is small. But how ...
6
votes
7answers
959 views

What is a realistic growth rate for a space colony?

I am starting a theorycrafting thread in a video game forum. It deals with the creation of a Hegemony created by the descendants of a colony ship that was cut off from returning to Earth (wormhole ...
6
votes
5answers
664 views

Minimum Population For a High Tech Society?

So I was thinking about minimum viable population levels for a colony and it hit me that there are two industries that probably can't be made to work at small population, but that you need to have a ...
5
votes
6answers
198 views

Does a large population make sense in a galactic society with automation tech?

So I am writing a Sci-Fi novel where humans are currently spread out over 440 Star systems ( ~ 2000 Light years). There has been several breakthroughs in Automation technology and all manual labor ...

15 30 50 per page