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Even if you stay within your own solar system, a civilization only slightly advanced from our own, even without fusion power, could easily sustain a population
by stcredzero 10y ago
Even if you stay within your own solar system, a civilization only slightly advanced from our own, even without fusion power, could easily sustain a population of a trillion.
https://www.youtube.com/watch?v=aDqjK5vR6hE https://www.youtube.com/watch?v=aDqjK5vR6hE