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Dec 15, 2021 at 13:05 comment added GrasshopperTaji Geo-thermally. Via natural pressure differentials. Via an underground river. Lots of ways.
Dec 15, 2021 at 0:29 comment added BowlOfRed How do you supply fuel to something buried under the ground and "forgotten"?
Dec 14, 2021 at 23:36 answer added Anders Sandberg timeline score: 2
S Dec 14, 2021 at 23:12 review First questions
Dec 14, 2021 at 23:31
S Dec 14, 2021 at 23:12 history asked GrasshopperTaji CC BY-SA 4.0