Logic only applied when it was convenient for him. His arguments would devolve into fallacies real quick whenever logic or facts didn't support his agendas, and he most certainly had agendas. His goal wasn't really to engage in discussion at all, he usually wanted to kill it, and he didn't care how he went about it.
He got in his own way, and maybe he was coming around to realizing that here and there, but naw, that wasn't gonna go away. Too ingrained.
He isn't stupid. He's just full of shit.
There, that's my contribution to the Marti trash talk.