Plz.
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People say that, but I can’t be the only person who’s ever noticed developed nations look to trend towards having flat population growth in the absence of immigration
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Arid, airless desert the size of Africa. If you really want lebensraum, bioengineer people to tolerate abyssal plain pressure. Presto, you can settle 50% of earth's surface area, also, it's a fairly stable environment quite safe from all but the worst imaginable catastrophes.
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I mean, that'd be badass, but why, when we could settle the oceans' surface with existing technology and biology?
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I realize that until we're fighting for elbow room in Antarctica and the continental shelf, there's probably not a strictly rational need to settle Mars. But since when have humans been strictly rational creatures?
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