@futurebird @frank @cstross @jannem @dx
I'm definitely of the view that being able to build a (physically) self-sustaining space habitat is a sine qua non of "colonising" anywhere in the solar system. If we can't build an O'Neill habitat (or similar), we can't build a city on Mars.
https://mastodon.social/@HighlandLawyer/113612412048576172
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