It is possible to show that some particular version of Deity isn't logical or reasonable (in your view, anyway) but how is it possible to prove that NO deity can possibly exist?
Why would we need to?
If you agree that there's no evidence for gods, then this implies that you:
- agree that every theistic claim is unjustified.
- agree that any religious claim that would serve as evidence if it were true is necessarily false.
When we're dealing with "you can't prove they DON'T exist," we're talking about stuff out beyond human knowledge: the "unknown unknowns," as they say. We can't make justifiable claims about stuff that is or isn't in the "unknown unknowns," so yes, in a sense, we can't justifiably say that something that looks kinda like someone's god absolutely isn't lurking out there somewhere, but so what?
When we get into "you can't prove God DOESN'T exist" territory, we're talking about how we can't tell the difference between:
- a god that doesn't provide any evidence for its existence in any way that we can perceive and is irrelevant in every way we can measure to anything we can measure, and
- a god that doesn't exist at all.
What we aren't talking about is any god that anyone is properly justified in believing exists (since we're talking about what to do when there's no evidence to justify a firm position).
Is that irrelevant god the god
you believe in?