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 ten. Also, famous engineer and inventor Elon Musk says it's nearly impossible with less than a million people including children.

  • $\begingroup$ This question and its answers need to be merged with the 2014 Question that is is a duplicate of. It certainly doesn't need to be reopened, as it's not asking anything new and hasn't been edited for improvement or differentiation! $\endgroup$ – elemtilas Feb 26 at 13:30