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.

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recordings per month · last 12 months
2 · May OctJan 26AprJulnow

Recordings per month over the last 12 months — 2 in all, peaking in May 2026 with 2.

Appearances

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And while he spoke, things would seem extraordinarily clear and obvious, and many people had the experience that then afterward, when you tried to reconstruct the arguments, you'd find it very difficult.
Somehow he made it seem easy, but there were nuances that he made seem natural when he spoke of them, but then when you tried to follow the path again, were actually very subtle.
And what is this law of gravitation?
It is that every object in the universe attracts every other with a force proportional to the mass of each and varying inversely as the square of the distance between them.
If you like mathematics, you can write that same thing as an equation.
The blackboard choreography would be very carefully thought out.
They would end exactly on time.
They had been prepared with great care, so he really put everything into it.
Feynman, I came in and there were about, I don't know, 16 or 20 students all wearing shorts and trainers with their feet up on the tables and stuff.
And none of them were taking any notes.
Feynman was lecturing and I couldn't, of course, understand anything.
It was really high level quantum physics.
But towards the end, he looked up at the clock and he said, look, we've only got...
eight minutes left.
And this particular problem we're talking about, he said, there's two ways of tackling it.
One's very elegant and clear and easy.
And the other one is just incredibly messy.
He said, but we've only got a little time left.
So I'll just deal with the incredibly messy one.
And I thought, well, this was great.
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