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So in heat death of the Universe time stops, matter is degraded, only quantum vacuum remains and the universe no longer expands?

Aren't those conditions similar to what physicists say about the quantum field from which the Big Bang happened?

So is there possibility that the current Big Bang before 14 billion years happened "after" an already heat death state of previous instance of the Universe?

Or quantum fluctuations can't happen in such scenario and the Universe will remain dead for an eternity.

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