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4000 or 4 million?
originally posted by: wayforward
The black hole at the center of the Milky Way, which was confirmed many years ago, is said to have the mass of roughly 4,000 suns and therefore 4,000 times more theoretic maximum life support.
The guy is no dummy but it's ironic that he apologized for possibly mispronouncing an effect when he mispronounces so many words, I can't tell if it's a bizarre accent, or if he's partially deaf or what but it's a little annoying. Anyway you're right about Hawking radiation being difficult to harvest even if it exists, especially from a 4 million solar mass black hole like Sagittarius A* the one in the milky way, so the maker of the video suggests another idea of harvesting the angular momentum, which may be more feasible but I'm left disappointed because he doesn't give any details of exactly how that might be done.
The catch to black holes is that the energy emitted by them can actually be tiny in many cases, and to my knowledge Hawking Radiation has not yet been proven, meaning we are not sure we can actually get any energy at all out of them.
Other people have apparently spent most of their spare time in contemplation of these structures, and I'm very impressed by a series of videos by someone with great knowledge of this topic who has recently released a video demonstrating that black holes can be used to tap a source of energy as follows:
Dyson spheres are a highly likely outcome of a civilization that can get to space cheaply and efficiently