@JohnBaez What should the top level discussions be?
* Chapter #
* Lecture # - Chapter #
You mentioned discussions on exercises, so?...
* Exercise #
I also suggest...
* Puzzle # - Chapter # :
I have completed all the exercises for chapter 1. Should I start posting them?
I am also really interested in the responses for your puzzle 4 for chapter 1.
It would nice if they were collected somewhere, should they be in the wiki?