[curriculum]

There's also something ritualistic about in-person lectures -- in a good way, like having a morning cup of coffee. We know that humans are not good at multi-tasking, so there is tremendous value in a dedicated time and place to think about one thing only in the presence of other people who are also thinking about that one thing.

Of course, it's easy to squander that opportunity by delivering a rote, feelingless lecture. And if you're just going to lay out the facts, why not record them? In that case, videos have many advantages. But a live lecture is also an opportunity to get people excited about what you're teaching.

Post-pandemic, my plan is to take a hybrid approach. Technical details, like proofs, belong in pre-recorded videos watched out-of-class. But the main conceptual thread should be delivered in live lecture, where I can give it the energy and life it deserves.