[@Odin] Honestly I came across it in a random article, I think it was [url=https://www.newscientist.com/article/dn1936-magic-number-for-space-pioneers-calculated/]this one[/url]. There are some Harvard studies mentioned [url=https://www.nbcnews.com/mach/science/how-many-humans-would-it-take-keep-our-species-alive-ncna900151]here[/url] that estimate the number as high as 14 000. It very much depends on the situation - if you take an exctinction type event that destroys most of the population on Earth, than you have a problem even with the 14 000, since people who survived are probably scattered around the globe and will have problems finding mating partners. Also if the infrastructure isnt in place, your people's lifespan will be much shorter (which of the people today really know how to make antibiotics out of nothing or how to take out person's appendix without killing them). The space pioneers mission calculations are much lower because people will be handpicked with needed specializations (and according to other aspects like age, fertility, hereditary diseases, etc.) and they will have all the tools and knowledge and technology available.


[@6slyboy6] Ok, I have no problem with taking the spears out, that was just an immediate wild idea. And by the huts I meant something similar to the bird nests - if you have some twigs and branches intertwined, you will have some space between them, so you just stuff some things in there to make a "den", maybe that would be a better word to use for it?