This lecture is interesting. I noticed right away a couple of tactical errors on his part, but fortunately, his audience pointed them out.
Since this is a lecture to an audience, he often asks obvious questions and then waits awhile for the audience to answer. Youtube has a feature where you can skip ahead by 10 or more seconds. On the PC it is done with the right arrow key. On the iPhone, it is done by multiple-tapping the right side of the screen.