Hubris - perhaps, but it was a challenge. Making predictions/bets can help clarify differences in world models.
and rudeness
The full quote was this:
Update, or provide counter evidence, or stop wasting my time.
In the context that he had just claimed that he wasn't going to update.
At some point soon, I'm going to attempt to steelman the position of those who reject the AI risk thesis, to see if it can be made solid. Here, I'm just asking if people can link to the most convincing arguments they've found against AI risk.
EDIT: Thanks for all the contribution! Keep them coming...