>>24606136
Energy, solar flows, EROI ratios, biophysics, this is as as concrete as it gets. These are the realities on which all ordered systems depend. You're speculating about black hole brains trillions of years into the future while accusing me of dealing with hypotheticals. First the guy who thinks you can be aware of experiences you're not aware of, then the guy who thinks interplanetary civilizations are plausible, then you speculating about heat death supercivilizations to handwave away real and present limits on how far we can push modern civilization without the whole thing imploding.