>>95114662
Except that for all its power gravity is just a force that drops with the exponent of distance, and works that way at every observed point in the universe including black holes. Sure they spin but the effect of that is so minor we need detectors the size of the planet to pick it up, and
>hawking radiation
Larger holes evaporate slowly and smaller ones have less gravity. And the big ones have a more smooth gradient as a result of that larger gravity, so you can fall past their event horizon totally unharmed (speaking of, you dont seem to be entirely sure what an event horizon even is)

And on top of that, a slingshot is about relative motion. Yes you can accelerate relatively if you have multiple moving bodies, but you cant slingshot off a single gravity well and come back to your starting point with any more energy than you went in with (you actually can but you didnt mention how so im assuming you just dont know and im not going to help you)

>>95114855
The more shit orbiting you the more they collide and fall to the center. Saturn's rings are only a few hundred million years old because these things decay rapidly. This guy's an idiot

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Would a space-fairing society use black holes to solve waste disposal issues?