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If I ask this question of this particle, and... my colleague on Mars asks the same question of the other particle, then even though those questions a… - John Horton Conway
" "If I ask this question of this particle, and... my colleague on Mars asks the same question of the other particle, then even though those questions aren't determined, ...they don't exist ahead of time, ...they'll give the same answer. ...It's meaningless to compare the times at which we do it, because time is not an invariant concept. ...[I]f my colleague on Mars has asked the same question, or ...will ask the same question... or if he's now asking the same question... he'll get the same answer. That is the EPR paradox, the fantastic thing that Einstein thought would disprove quantum mechanics. It is... perfectly consistent, but ever since it was discovered people have been trying to explain it away... because it's hard to believe.
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About John Horton Conway
John Horton Conway (26 December 1937 – 11 April 2020) was an English mathematician, and Professor Emeritus of Mathematics at Princeton University in New Jersey. He was active in the theory of s, , number theory, and . He also made contributions to many branches of , most notably the invention of the with . Born and raised in , Conway spent the first half of his career at the University of Cambridge before moving to the United States, where he held the John von Neumann Professorship at Princeton University for the rest of his career. He died of complications from COVID-19 at age 82.
Also Known As
Alternative Names:
John H. Conway
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JHC
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John Conway
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Conway
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Additional quotes by John Horton Conway
[W]hen... non-predictivity of quantum mechanics was discovered, it came as a great surprise. People tried to explain it away. ...Many ...invented larger theories. ...Nobody has succeeded in making one of these theories relativistically invariant, and physics appears to be relativistically invariant. ...Physicists have believed ...in the result that we're proving for a long time. It's no surprise. "I knew all that," they say. However, what they didn't know was that it can be deduced in this very precise, logical fashion, from so little information... that is not at all contentious. ...[T]hese 3 axioms ...they're routine, they're accepted ...They follow from quantum mechanics and relativity. There's nothing dubious about them ...and that's all we need... [T]he original deductions... [of] quantum mechanics... used more. They used all sorts... and some... were... pretty poorly understood...
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The Free Will Theorem [s]ays roughly, that "if... humans have free will, then so do the elementary particles outside us.
Uses three axioms SPIN, FIN, (or MIN) and TWIN." I only mean this in a very restrictive sense. I don't suppose much free will. The supposition is only that the human can choose which one of 33 buttons he want to press. ...[T]his choice affects the future history of the world in a minor way. ...We know that button was pressed ...before it was pressed we didn't know which one it was and ...a human experimenter has that much free will. That's the only amount of free will I suppose. We suppose nothing about these deep questions of moral responsibility and so on.
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