Post-lectural lobotomy. A very suitable way to describe how I feel right now, coined by Trine Syvertsen in a rather informal context several years ago. It's the feeling after a lecture when your brain refuses to function, as if some synapses have been cut.

But at least a student came down to me and thanked me for the lecture, saying it was very interesting to listen to somebody who knows what they are talking about. It's years since I had a student say that to me. Almost four years. Can there be a connection between almost four years of no lecturing and almost four years of no nice students telling me they liked the lecture?