Maybe it would be taking things a bit fast to attempt a rational proof of God's existence without first being sure we all know and agree what we mean by -God-, and what we mean by "existence"
Otherwise, we might just be talking at cross-purposes, having the illusion of debate, when in fact we all understand not what the other person is saying, but what we prefer to hear.
I admit that defining god is difficult, perhaps an impossibility, -especially if God doesn't exist?- or in any case, But, all the same, I think someone ought to do it, just for clarity's sake. Not me though. I'd be worried about blasphemy.
Existence. Well surely everyone knows what "existence" means..
But do they. ?
What do you think of the following propositions.
Wales exists.
Truth exists,
Beauty exists.
Quarks exist.
Romantic music exists.
Sexual desire exists.
Innocence exists.
The past exists.
Evil exists.
Fear exists.
Hope exists.
The future exists.
Godel's theorem exists.
Rationality exists.
Gravity exists.
The blood of christ exists.
This could go on for ever, but the list should make it clear that the meaning of "exists" is far from straightforward. For that matter, the meaning of rational is not exactly straightforward either.
There is a point of view that "existence" is a bankrupt materialist concept, and that it makes much more sense to talk about the tuned-in and the not-tuned-in, but if you think that's just hippy bollox, I won't be surprised.
Anyway, not meaning to slow things down,
but seriously, it's probably a good thing that phil's waited so long to deliver his proof, as it gives us all the opportunity to get some clarity, and make sure we know what we're discussing.