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Cool article, but we can never live on another planet because pressurized habits would be stressful? yeah, Archean Earth would still need domes, but surely the disqualifing 'never' part is still going to be distance? Reassuringly strong domes sounds a lot easier than FTL ships.
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"We don’t just need a planet roughly same size & temp as Earth...We depend completely on the billions of living organisms that make up Earth’s biosphere. Without them, we can't survive. Our future is here, & it doesn’t have to mean we’re doomed."
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