About two years ago, I started setting up a series of Last Lectures at my college. By now, we’ve organised five, with one more coming up this semester, and overall, they’ve been a big success. This is the last one, from last Wednesday, and one of my favourites. It’s beautifully (wonderfully, ha ha) well-rounded, and says a lot of things I very much agree with, or that have given me food for thought. If you have an hour – which is pretty long, admittedly – watch this. It’s worth it.