That aside, I observed a ton of hand waving in this talk, and I'm willing to bet it isn't backed up by the appropraite amount of rigor in his "research". In particular, I am concerned about how hard he tried to poke holes in his own theory, given the risks that might pose to his forthcoming (at the time of the talk) book.
Since we just had Cargo Cult Science posted the other day, this is a great time to think about this. I sometimes think that we (hacker news readers) might actually be more suseptible to accepting theories that haven't rigorously examined because our need to understand things is unusally great. So when we come across a theory that is internally consistent, not obviously wrong, and just sort of seems to make sense, we tend to reject any attempts to discredit the theory, lest we risk going from understanding to not understanding.
In other words, I think we sometimes value the feeling of understanding something over any utility that would come from actually understanding it.