I found a couple posts about this from about 8yrs ago, but they never went very in-depth. As I understand it in probably the broadest sense, one universe collapses and another starts after that with a Big Bang. Does this mean there’s a point of nothingness very briefly in between existences? What causes this universal reset of sorts?
In: Physics
Its not a very popular theory these days as the big rip or heat death seem much more likely. Regardless, the idea goes as follows: due to gravity pulling on all things, eventually it would overcome the acceleration from the big bang and start pulling everything in the universe together which then would collapse into a tiny spec of ultradense matter, that sounds awfully similar to the conditions just before the big bang and hence…. big bounce!
Right now it looks like everything is accelerating away from everything else though and gravity will never catch up, we’re way past the point of no return on that one.
Personally my favorite universe theory is that after all solid matter in the universe has radiated away, eventually everything would become perfectly homogenous, a state of maximum entropy. At this point the universe would be completely featureless and in regards to information – the size wouldn’t really matter so the universe could be the size of the universe or it could be incredibly tiny, same difference. At this point the universe decides that it is in fact tiny and explodes once more.
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