Roger Penrose
speaker
1,638 appearances
2 recordings
1 series
first heard Aug 2025
last heard 3 Nov
Roger Penrose’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Nov 2025 with 1.
Appearances
If you can make a measurement without disturbing the system
To say are you
Like a spin half particle, say.
is your spin in that direction?
And if you got it right, it will say yes with certainty.
That's Einstein's crit criterion for the reality.
I'm slightly changing the terminology.
That is in my mind the criterion for quantum reality.
It's you can't say hello particle which way are you spinning?
Oh you can say that, but it won't tell you.
It looks at you blankness blankly and says, I don't answer questions like that.
Suggests a direction, you see.
Then you can suggest the direction.
If you got it right, it will say yes, you got it right.
If you've got it wrong, it we may say yes, it may say no, with various prob probabilities depending on where
If you've got it completely wrong, opposite right.
It would say no with certainty.
So Einstein's crit criterion is satisfied.
But you can't ask the particle which way it's spinning.
That's quantum reality.
Showing 601–620 of 1,638 · page 31 of 82
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