While I've enjoyed Feynman's other lectures, this series & transcript felt a bit like following the mad hatter around on a tour of wonderland after falling down the rabbit hole. I think there was an unresolved conflict between the material he was wanting to cover and the audience he imagined he was preparing it for. The result was a mash of core ideas with loose analogies and comparisons, which were more miss than hit. In typical Feynman style, he relates to the audience with wit, but here I feel like it wasn't always backed with substance.