I had quite a productive morning. I did my differential geometry homework and then learned how to make commutative diagrams in LaTeX. Unfortunately, I can only do arrows. I still need to figure out how to do lines and lines with slashes through them.
Labutin came to class a couple minutes early and decided to start even though very few people were actually there. I assumed that he had a lot to talk about and that he wouldn’t finish in 50 minutes. However, after about half an hour, he had said all he had planned to say and then left.
I wandered around campus for 40 minutes trying to find the Instutite for Theoretical Physics and failed, so I didn’t hear Witten speak. I doubt I would have understood anything anyway.