Wayback of the Sloan School seminar page shows him doing one on February 24, 2025. I wonder how that went.

I miss google search's Cache. As with the seminar, several other hits on MIT pages have been removed. I'm reminded of a PBS News Hour story, on free fusion energy from water in your basement (yes, really), which was memory holed shortly after. The next-ish night they seemed rather put out, protesting they had verified the story... with "a scientist".

That cassyni talk link... I've seen a lot of MIT talks (a favorite mind candy), and though Sloan talks were underrepresented, that looked... more than a little odd. MIT Q&A norms are diverse, from the subtle question you won't appreciate if you haven't already spotted the fatal flaw, to bluntness leaving the speaker in tears. I wonder if there's a seminar tape.