I came to that point about the cycle synchronization in his lecture series and I had to stop. Not entirely because of the error, but because the phenomenon he cited was controversial well before he gave those lectures. That tells me he was not one to a) update his beliefs b) predisposed to falsifying his beliefs/seeking out contrary evidence or c) acknowledge disagreement about a phenomenon
Any one or combination of those qualities makes me skeptical when one is teaching a "science". So rather than spend the rest of the series second guessing everything he said, I stopped watching. It's a shame, he's really a great lecturer.