Quote:
Originally posted by Happy Monkey
The big bang doesn't preclude matter/energy always existing. It could have existed before the big bang, in a different form. Or there could be a big bang/big crunch repeating cycle.
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Yes, that's true. The universe could be a cyclical bang/crunch, but for the moment that is unprovable. Science has only gotten as far back as the Big Bang. Before that is fun speculation (and faith
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Then the question of the Big Crunch, (or the giB gnaB), I think that is still an unknown. The question there is if there is enough matter to halt the expanding universe and bring it all together again. If there is, then we can have the cyclical universe, if not, then this current universe will grow to be very very old as juju says.