Writing is still a bit slow. Partly this is because I'm trying to rewrite things in order, and I got to a tricky bit.
Partly this is because I was catastrophically tired all day and my ability to focus is effectively random. Like, I could try to push through this bit of writing. Oooor I could read the documentation of an experimental programming language.
Anyway, I'm not going to do any better if I stay up, so this entry is over now.