It probably is. I think the same thing happened when Randall Munroe (of xkcd fame) gave a talk at Google. I was there, it was crowded, and Don Knuth showed up. 90% sure he sat on the floor.

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nooks 2 days ago | parent | next [-]

Friends and I nabbed front-row seats to the Munroe talk; after a time we were asked to take seats a few rows back to make room for Knuth and others. He definitely did not sit on the floor.

	▲	scottlamb a day ago \| parent [-]
		Well, that shows what my 90% sure memory is worth. I sit corrected.

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svat 2 days ago | parent | prev | next [-]

FWIW the XKCD talk at Google is here (wow, 18 years ago! I remember watching this video when it was posted): https://www.youtube.com/watch?v=zJOS0sV2a24 (Knuth comes up to ask a question at 21:30) (Can't tell from the video where he was sitting otherwise, though there are definitely at least some people sitting on the floor.)

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flir 2 days ago | parent | prev [-]

I would definitely give up my seat to Don Knuth.

	▲	scottlamb 2 days ago \| parent [-]
		In theory I would too, but I was also on the floor, and believe it or not I didn't notice Don Knuth was there until after the talk had started.