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28 | Roger Penrose on Spacetime, Consciousness, and the Universe

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

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The Importance of Entropy in Energy Extraction

In the famous textbook by Kip Thorne and also Mizner and Wheeler, there's this picture of an advanced civilization that has built an energy extraction device around the supermassive black hole. There's a lot of energy we could in principle look it out. From our dependence on foreign oil sources, if we could really harness black holes this way. But when it came to the talk, I can't see which way around was it.

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