This, as you have probably worked out, is Tim Berners Lee's Do Lecture. I've been waiting for this to appear on the Do site because I really wanted to write about something he talked about - to do with powers of ten and putting pebbles in buckets or something. I can't remember 100% and I can't find my notes and now I can't find it in the video. Maybe it was in the Q and A afterwards. Nevermind, I'll try and find the notes and bore you with it all another time.
But it's still a magnificent talk. Low-key, human, inspiring. And, having just finished Where Good Ideas Come From, I realised what a perfect illustration of Mr Johnson's principles it is. Mr Berners-Lee describes a live lived on the edge of an expanding bubble of adjacent possibilities. He grew up working with technologies, understanding them as they arrived and then being able to treat them as 'solved' as they got turned into components in bigger systems. His slow invention of the web sat on top of all that tinkering and learning. I'd never really thought of it like that.
Anyway. The video's great. The book's great. They go well together.