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by fjrieiekd 3258 days ago
Why not have both? :) as far as "backup of human civilization" goes though, Mars has more potential: water, atmosphere (thin though it may be), higher gravity, and a day similar to earth. If the s ever htf on earth, a mars colony has a better chance of surviving one day without earth's help.

I guess for me the question is if that will matter or we get strong AI first.