I don't have any examples off hand-- the thing is, unlike guys like Rubin, he's smart enough that he doesn't make many huge gaping obvious mistakes, I can give some him credit for that-- but almost every time I've seen him talk about anything, I always notice wormy micro-deflections, selective arguments, and an unwillingness to explore areas earnestly (that based on his talent/arguing ability, are clearly beneath his intellect)-- his religious arguments in particular take huge reaches and detours to get to where he needs to go, and there's always that underlying smarminess and contempt/delight that he takes in calling things out that really betray the notion that he's really interested in getting to the bottom of something, rather than just pushing what he's selling by any means necessary. Most people who are genuinely interested in the truth and good faith arguments would express frustration where he expresses contempt, IMO.