For the HBD, pro-IQ folks in the crowd. Best IQ-ist since Griffe du Lion.
Commentary: great analysis...but not deep enough after round one. Jehu will like it a lot.
I think that he ignores the Rationalist argument (Stanovich), and the affiliationist argument (example: Krugman -- picking conclusions via groupism, regardless your intelligence). And he ignores critical aspects in epistemology, in particular the map/territory distinction...approaching everything from a school-ist right/wrong approach rather than a real world ignorance model (my model is 70% predictive vs yours which I think is 60% predictive, even though the predictivity doesn't overlap).