John Preskill
speaker
321 appearances
2 recordings
1 series
first heard May 2026
last heard 29 May
John Preskill’s voice in public audio — every appearance, attributed to the second.
Trend
recordings per month · last 12 monthsRecordings per month over the last 12 months — 2 in all, peaking in May 2026 with 2.
Appearances
Although that was the only official undergraduate class that Feynman taught at Caltech, there was an informal class of which he taught for many years.
It was not in the catalog.
It was not documented anywhere.
The freshmen called it Physics X. It was intended especially for freshmen.
And by word of mouth,
it would become known that Feynman was going to be in a certain classroom at a certain time and that you could come and interact with him.
Not in the catalog.
No grades.
What was it?
It was Feynman standing in front of the blackboard saying, ask me anything.
And there were rules.
The rules were, don't ask me about coursework.
Don't ask me how to do this problem in such and such a course.
Don't ask me about somebody's paper.
I haven't read it.
I don't care about it.
Don't ask me about somebody's theorem.
I don't know that either.
I can't tell you.
Ask me about trying to understand something.
Showing 221–240 of 321 · page 12 of 17
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