The attempt to find fault with what he's saying is part of my learning process. I'm not doing it just to convince him personally; I just enjoy aggressive argumentation as a method of exchanging ideas.
His last post gave me a lot more faith in his level of understanding of these concepts. Before, I thought he was just trolling, so I wasn't taking him too seriously because he hadn't shown me any reason I should. I was trying to be entertaining/appear to be winning.
Now that I'm convinced I can learn something from him, and that he actually has a motive beyond trolling, my tone will soften a lot.