(1) Sun Oct 30 2005 21:36 PST: Argh. Spent all day working on a recipe about matrix multiplication. Like a party in an after school special, it started out with laughs, everyone having a good time, but then someone started passing around some linear programming and it all got kind of blurry. Next thing I knew I was lying optimally in a pool of my own vomit, clutching the memoized state of all subpools of the vomit. A lot of the fun in writing this book comes from relearning stuff you learned in college, but it's not so fun when it takes all day to get it right.