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A comment on Webb Telescope detects most distant active supermassive black hole. Parent comment
1) They aren't power sources, but if they are spinning that rotational energy could theoretically be harnessed: https://en.wikipedia.org/wiki/Penrose_process
2) Uh, no?
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1) They aren't power sources, but if they are spinning that rotational energy could theoretically be harnessed: https://en.wikipedia.org/wiki/Penrose_process
2) Uh, no?