>>14023406CM actually looks boring and obvious enough, so I'm probably fine with EM next and then digging into manifolds, tensors and whatnot. If it wasn't part of the Reissner–Nordström and Kerr-Newman metric I could see myself even skipping EM for now, but whatever, I can see it being useful for other things, too.
>>14023728>PeeblesThanks, looks promising.
>>14024892IDK, IANAP. I suppose it would depend on what exactly you want to model. Just talking out of my ass, but for some space dust or gas clouds turning into stars and then heating up their surroundings while taking into account the amount of remaining gas or anything like that it might be useful. But if you're any kind of physicist you know more than me.
Personally, I'm mostly (but not only) interested in what happens in or around a BH, for example what happens if a BH is dropped into or just somehow magically created inside another one. The inside is a de Sitter space, so basically a sphere (AFAIK), so wouldn't gravity cause it to bend "outwards"? If so wouldn't a BH inside a BH cause the gravity well to go "sideways" (geometrically speaking, from outside reference frame)? And if so, wouldn't another BH inside that sideways BH fold back up to the origin outside, depending on the orientation/position? And what the fuck would that look like from the outside then? Another BH ripping spacetime up? Those are the questions keeping me up at night.
Or if I can somehow link the singularity with the point at which the BH evaporates.. At which point I need at least some QM/QFT, I guess.
Even if that somehow actually works at all in GR, it might not exactly give accurate/physical results in crazy scenarios like that, but it would be fun to explore in a gamey simulation and to just to play with it interactively. There are probably easy to find papers answering this, or ready-made simulation programs, but where's the fun in that.
