>>8738222you must understand that for some level of complexity all physics just becomes pure math, because testing anything experimentally becomes a factual impossibility
thus we take a couple of more or less extreme points of matter + spacetime we were actually capable of observing/reproducing, construct equations around their behavior, then trying to line up said equations to a general pattern of behavior
sometimes that requires shit like adding extra spatial dimensions, or extra forces, or shit like dark matter - all in the effort for the math to line up with observations; those are mostly there not as a factual existence but filler for the gaps in our knowledge, that will probably remain unfilled for a good while, because falsifying them requires burning through energy of a Sun or something similar
what Sana was bullying Kroni with is basically the kind of popular science that Nigga DeGrasse drops on his shows, just small digestible chunks for people who don't breathe high arithmetic; it sounds super cool and smart for like 97% of the population, incredibly frustrating and simplified for 2.999% of autists like me and cute for the 0.001% of people who actually understand it to a respectable extent
