Notably, Lilian did not explain diffusion models simply. This is a fantastic resource that details how they actually work, but your casual reader is unlikely to develop any sort of understanding from this.
Fair point. The context of that quote was that he was asked by a journalist for a quick explanation over the phone when the physics Nobel for 1965 was announced.
He did go on to write a very readable little book (from a lecture series) on the subject which has photons wearing little watches and waiting for the hands to line up. I'd say a keen eight-year-old could get something from that.
