A million people were never necessary to make a Mars colony viable, it's just one of those things that Elon throws out there.
Can't wait to see your post about minimum viable population!
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A million people were never necessary to make a Mars colony viable, it's just one of those things that Elon throws out there.
Can't wait to see your post about minimum viable population!
It's actually a surprisingly small number genetically. Socially you need a few more.