Coding and communication theory is going slow. I’m about half way through the chapter (it’s a long chapter though) after having spent 2 – 3 hours on it (including rereading a section here and there). The first 3 chapters I just breezed by but chapter 4 is a challenging read. I need a notepad to read chapter 4 so that I can work out Feynman’s proofs for myself. Trying to read it on my couch is not going to work for this chapter.