I've watched it now, and while I've no doubt he's a good science communicator, and the topic and examples are solid, I think he falls between two stools here. I think he goes too fast for a neophyte, and the topic is too basic for someone with experience.

If you watch the Royal Institution Christmas Lectures (which I think are pitched at the same level) you'll see they generally slow things down a bit.

Would have benefitted from fewer examples, with more time spent on each.