How exactly does the Big Bounce theory work?

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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

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Anonymous 0 Comments

This may be a similar idea, but there are theories about the “shape” of our universe. Imagine a donut. Now imagine “the Big Bang” being a point in time where all the matter in the universe began to travel outwards from the donut hole. The matter travels along the surface of the donut until it travels all the way back to the center, where another Big Bang will happen and the universe “restarts”

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