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by idibidiartists
3312 days ago
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Haven't tou heard of civilization types? I think type 3 (or 5?) is one where they have harness the energy of their sun(s) in an optimal wag. They gather solar energy in space and beam it to their planet, moon(s$ and their space colonies. |
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https://phys.org/news/2016-07-iii-civilization.html