First of all, in an intellectual debate, you don't go around telling someone that they're cornered.

No, my understanding is that it's a fairly typical tactic.

I would quite agree that there's a chance worth considering that I'm the center of a government conspiracy. (It's got a name.) I don't have any idea how that chance actually ranks in my mind, and any figure I did give would be a Potemkin (a complete guess). But it's entirely possible.

Yes, I was indeed thinking of the Truman Show Delusion. My point, though, is that it shouldn't be any less credible than religion to you, meaning that you should be acting on that theory to a similar degree to religion.

The impossibility (according to some) of counterevidence against atheism (i.e. evidence for God) does not provide any evidence whatsoever in favor of atheism

Counterevidence for atheism is not impossible at all, as people have been saying up and down the thread. If the skies were to open up, and angels were to pour down out of the breach as the voice of God boomed over the landscape... that would most certainly be counterevidence for atheism. (Not conclusive counterevidence, mind. I might be insane, or it could be the work of hyperintelligent alien teenagers. But it would be more than enough evidence for me to convert.) And, in less dramatic terms, a simple well-designed and peer-reviewed study demonstrating the efficacy of prayer would be extremely helpful. There are even those miracles you've been talking about, although (again) most of us consider it poor evidence.