Busyness

I will, I promise, follow up on the discussion of projective duality. On the one hand, I'm having trouble figuring out just how to put things; on the other, I've been a little preoccupied with preparing my talk tomorrow (on top of my regular duties, including the DiffEq test I gave this morning). Maybe this weekend...

I finished with de Quincey; my new bus book is a biography of Leonardo da Vinci, by Serge Bramly. It looks quite interesting so far. I'm about two-thirds of the way through Stephenson's Quicksilver; somehow I'm not finding enough reading time, especially for the kind of tomes Stephenson puts out. But it's a lot of fun, in between the grimth.