Tangential, but I read his New Kind of Science book. It's an interesting book, but I found the first chapter to be pretty amusing.

The first chapter is so completely self-aggrandizing about how this book will change your life and the world and the entirety of science and mathematics and you should feel lucky for reading it.

The cellular automata stuff is pretty cool, but I don't feel like it lived up to the hype of the first chapter.