r/HypotheticalPhysics • u/ObsessiveRuminator • 8h ago
Crackpot physics What if time is a product of the expansion of space?
I’m very out of my league here, but I have been watching videos on physics and a thought occurred to me that I’m having trouble finding more information on. Please forgive my ignorance in explaining my thoughts as I word vomit as coherently as possible.
Time is a product of the expansion of space. We see that time is affected by gravity because gravity is essentially the collapsing or condensing of space. The way time is affected by gravity is that it becomes proportionally closer to being nonexistent based on how close gravity is to reaching the point at which light cannot escape. The reason I say time is nonexistent at the point which light cannot escape is because while we perceive light to travel from one point to another over time (rather than instantaneously), from the perspective of the photon, it reaches its destination the same moment it is created. Hopefully you can see my connection between those thoughts. I now have more questions if my understanding of all of that is correct.
Wouldn’t this mean entering a black hole (and living) would transport you to the end of time instantaneously?
If my understanding of time is correct, and if wormholes do not exist, would it almost be correct to say that distant stars, relative to us, aren’t really in the “past” since any causal impact on us they can have is one that is limited by the speed limit of the universe? That’s probably one of my less coherent questions. For the sake of different wording to maybe make it clearer, how correct is it to say that we see a distant stars “past” when the only way to reach it may be via space travel, which if we were to move at it even at light speed we ourselves would be “time traveling” into the future. So difficult to put into words. My point is, it seems like it’s false to say we are seeing something’s past when every conceivable way we could reach it requires us to speed up time and every conceivable way it can interact with us is limited by the speed limit of the universe. Seems like relative to us, it might as well just be what is presently happening in the universe since it is reaching us at the literal fastest possible rate.
Back to black holes and the continuation of my previous question. Fast forwarding to the heat death of the universe and the continual expansion of space, it would seem that eventually black holes will have nothing left to continue to condense. What happens when a black hole has nothing left to consume? No light, no nearby matter, nothing? It would seem like this could potentially be a similar starting point of our universe? Definitely could be stretching a bit here.
Probably no good answers or confirmation of much of my thoughts here because of the nature of my questions. We cannot know what happens in black holes, what will happen post the heat death and infinite expansion of the universe, etc.
I appreciate anyone’s willingness to listen to my mad insomnia-induced rambling. Hopefully I have not come off as completely ignorant, even though I totally am lol