He does a lot of speculation, but when he does that sort of thing, he is normally very explicit about it being mere speculation. He likes to talk about ideas and think about stuff. So do I. But he's usually explains it's speculation and he won't give it much bearing unless it's backed up. When he's talking about scientific claims, I find they're usually backed up with experimental/empirical data... can you give some examples of massive fallacies he's made?
Err...can you show us the experimental data that provided evidence of 'memes', francois.
Don't hold your breath, guys!