What would evidence of a God even look like?

[Jesster]

Here's the thing. I'm trusting scientists with my cosmological beliefs. As far as I know, there was no time before the Big Bang, nor is there evidence that there is anything out there other than everything that has originated with the Big Bang. So, I guess it comes down to how much you trust science when you encounter this argument. I trust it, and I came up with the argument myself while coincidentally debating a theist about the existence of God. You seem not to. That's fine. You can choose to disbelieve science in favor of your own fantasies. Good luck.

Space time came into existence at the big bang that is why it begs the question what created it. If you find a dead body it could be murder, it could be natural causes or it could be suicide.

Create is poor word choice. That assumes a creator. A better question is "what caused it?". What most rational atheists say is "I don't know" because nobody has found evidence of anything "before" then. We don't even know if there was a cause. Anyone who tries to make an assertion about what is likely to have caused it at this point is absolutely not being rational. You can throw guesses about it at a dart board, but that doesn't really make anything more true. Get more comfortable with saying "I don't know" when guessing is the only other option.