Originally posted by loinburger
Once the shrinking universe reaches a given mass/energy density then it collapses to a singularity and it doesn't really make sense to think of it as anything else at that point, because the laws that govern our universe don't apply in any meaningful sense (as far as we know) to the singularity. I suppose that we could still think of the singularity as "the universe," but even so we'd still be dealing with two entirely different entities -- the "normal universe," and the "singularity universe" -- when we make any statements concerning either. F'rinstance, we could no longer say "the universe is causal," because for all we know the rules governing a singularity are acausal. That's why it doesn't make sense to have both an eternal and expanding universe -- we'd be making the term "universe" pretty meaningless if we equated a singularity to what we're living in.
Once the shrinking universe reaches a given mass/energy density then it collapses to a singularity and it doesn't really make sense to think of it as anything else at that point, because the laws that govern our universe don't apply in any meaningful sense (as far as we know) to the singularity. I suppose that we could still think of the singularity as "the universe," but even so we'd still be dealing with two entirely different entities -- the "normal universe," and the "singularity universe" -- when we make any statements concerning either. F'rinstance, we could no longer say "the universe is causal," because for all we know the rules governing a singularity are acausal. That's why it doesn't make sense to have both an eternal and expanding universe -- we'd be making the term "universe" pretty meaningless if we equated a singularity to what we're living in.
Although in most discussions that would fine, in one about the existence of God its a bit much no?
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