Once I get my Ph.D. in software development, I'll watch this again. I'm sure there is great info, but it's clear you would already have to be an expert to understand.
If your developing professionally there isn't much here you wouldn't have a surface level understanding of and google is your friend. I hope your PHD went well :). Sometimes you just have to go digging for yourself too
Not everyone can be perfect public speaker. Probably a lot of stress but he managed to say a lot of interesting things and keep clarity of mind which is most important tbh