Yeah, I thought that was a weird thing for Andrej to say. Ever since the Attenborough spoof (https://www.youtube.com/watch?v=wOEz5xRLaRA) it's been clear that these things are very capable of making people laugh.

A lot of comedy involves punching down in a way that likely conflicts with the alignment efforts by mainstream model providers. So the comedic potential of LLMs is probably even greater than what we've seen.