Did the universe begin to exist? Atheist: Maybe the universe is eternal and doesn’t need an explanation for why it exists. It’s just always existed. What’s wrong with that? Theist: Well, I think my last argument showed that there would need to be a reason to explain that an eternally old universe exists instead of just an eternity of nothing. But the other problem I have is I think there is good evidence the universe is not eternal but that it began to exist. A: Like what? T: Well, according to the second law of thermodynamics all physical systems move toward disorder and decay. If the
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