big crunch

  1. S

    A Would Wheeler's oscillatory universe model create different laws?

    According to physicist John Wheeler, the universe is part of a sequence of cycles of Big Bangs and Big Crunches, called cyclic or oscillatory universe model (https://en.m.wikipedia.org/wiki/Multiverse (Mentioned in "Classification schemes") According to this author, in each cycle, the laws of...
  2. Jarvis323

    I What would a big crunch look like observationally?

    Suppose one day the expansion of the universe halted, and then reversed towards a big crunch. 1) Do the laws of physics change? How? 2) Would it be the case that the change from expanding to contracting occurs everywhere instantaneously, or could some parts of the universe begin contracting...
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