- #1
Warp
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When matter is dense enough (most usually because its own gravity compresses it), it collapses into a black hole. The necessary density is defined by the Schwarzschild radius of that matter: If matter is inside its own Schwarzschild radius, it will collapse into a singularity (as far as we know). Famously, it's impossible for such matter to escape this radius once inside, a limit that's know as the event horizon.
At the initial moments of the universe, all of the energy in the universe was inside its own Schwarzschild radius. This is puzzling. How did the energy escape its own event horizon? Why isn't all the energy that exists in this universe simply in a singularity inside one giant black hole? How did it escape?
Being a complete layman on this subject, and having only a very cursory understanding of the physics involved, my own hypothesis is that the answer to this is that at the initial moments, the universe expanded faster (much, much faster) than gravity could propagate (which can only propagate at c). This means that the event horizon didn't actually have time to form because the metric expansion of space caused all the energy to spread out before its own gravity could "catch up" with it, if I'm allowed to use a what I'm sure is a rather informal expression. Thus, energy didn't actually escape its own event horizon, because there was no event horizon to escape from. Not yet. The universe expanded way too fast for it to have ever time to form and "enclose" all the energy.
Is this even close to correct?
At the initial moments of the universe, all of the energy in the universe was inside its own Schwarzschild radius. This is puzzling. How did the energy escape its own event horizon? Why isn't all the energy that exists in this universe simply in a singularity inside one giant black hole? How did it escape?
Being a complete layman on this subject, and having only a very cursory understanding of the physics involved, my own hypothesis is that the answer to this is that at the initial moments, the universe expanded faster (much, much faster) than gravity could propagate (which can only propagate at c). This means that the event horizon didn't actually have time to form because the metric expansion of space caused all the energy to spread out before its own gravity could "catch up" with it, if I'm allowed to use a what I'm sure is a rather informal expression. Thus, energy didn't actually escape its own event horizon, because there was no event horizon to escape from. Not yet. The universe expanded way too fast for it to have ever time to form and "enclose" all the energy.
Is this even close to correct?