A commenter at WEIT yesterday, strikingly named RPS, made a familiar point

I eagerly await your demonstration that the claim “God exists” is false.

She later expanded.

As they say, you don’t know what you don’t know. I’d be perfectly happy with a clear demonstration of how “God” as commonly understood doesn’t exist.

The fact that it’s difficult to impossible to demonstrate conclusively that something doesn’t exist does not mean it’s reasonable to believe that that something does exist. It’s also not a good reason to believe that it does exist.

It’s possible to imagine an infinite number of things, none of which we can demonstrate conclusively not to exist. That doesn’t mean we should believe they all do exist.

Why can’t we demonstrate that “God” doesn’t exist? Because there’s nothing to demonstrate – to examine or investigate. There is no specificity to test. But that’s not a reason to think God does exist; it’s a reason not to. Things that exist have specificity.

If people (however many) say there’s an X but won’t and can’t say where, how, what, how much, or anything exact enough to peer review…then that’s a reason to think they’re bullshitting. It’s true that that’s not a demonstration that X doesn’t exist, but then it doesn’t need to be.

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