Well, if this is the case: that one can prove it in metaphysics, using those tools, then the proof has not effectively convinced, certainly the lay public, and even within metaphysics the proof (or proofs) are not consensus accepted as holding up. — Coben
You expressed in an earlier post your conviction that God's existence could not be demonstrated rationally. That's really neither here nor there, but nevertheless I did not want to let it pass and so I expressed my justified belief that it can be demonstrated rationally, for I have done precisely that here - that is, demonstrated it rationally (not this thread, but elsewhere). Or so I think.
As to my view not being accepted by the majority of experts in the field - well that's true in one sense and false in another. It is false in that the majority of expert metaphysicians do, actually, accept that God's existence can be demonstrated, or at least shown to be more reasonable than not. You are confusing the current crop of expert metaphysicians with 'all' expert metaphysicians. But there have been expert metaphysicians for millennia. And most have thought God's existence can rationally be demonstrated. So, that's the sense in which what you say is just false. Among those whose expertise is not in question - among those whose brilliance is undisputed - there is a broad consensus that God's existence can be demonstrated.
The specific proof that I was talking about, however, is not currently widely known. So we cannot really look to the expert community's judgement about it, for it has not yet been formed. Academic publications are not widely read, so the whole process from discovery to academic respectability is a very long and drawn-out one. As such lack of widespread current acceptance doesn't really tell you anything important about the credibility of the argument.
If it was a widely known argument, and if the majority of the expert community, being aware of it, has judged it to fail, then I grant that would provide non-experts with prima facie reason to think it probably doesn't work.
But this thread is about expertise. So we can put the specifics of the proof aside and just consider things in the abstract and think about what it would be reasonable to believe in light of an expert judgement.
Say an expert in a field thinks he/she has made a discovery in that field. You - a non-expert - think that X is the case. But this expert in the field is very confident that X is not the case. His evidence has yet to become widely known in the field and so it has not yet been widely scrutinized.
What should you, as a reasonable person, now think? You know that this person knows a lot, lot more about this matter than you. And you know as well that this person is very confident that X is not the case (which is unusual, because normally experts are more circumspect).
Well, I think you should take very seriously that X is not the case.