Well, that statement was a lot more correct even just a few years ago. But we're starting to get a much better grasp on it. In the past 10 years or so we have learned more about how the brain functions than in all of human history. It's true, we're not yet experts, but you're making the assumption that we need to know entirely how the human brain works in order to build something that supersedes it in capability, and this is simply untrue. I don't need to know anything about how a gasoline engine works to build a faster and more efficient electrical engine. In truth, such thinking may even impinge on my ability to do so. The singularity isn't about creating a human brain in chips, it's about a point when the chips are able to process more than our brains are capable. What forms that takes and consequence of that is simply unforeseeable. Simple math proves it's coming.