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Old Aug 27th 2017, 06:04 PM   #11
Pmb
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Originally Posted by HallsofIvy View Post
According to Feynman, we can think of that zig-zag line as a single electron moving back and forth in time, seeing the electron moving backward in time as a positron!
Actually he stole that idea from Wheeler. According to Feynman
According to Feynman:
I received a telephone call one day at the graduate college at Princeton from Professor Wheeler, in which he said, "Feynman, I know why all electrons have the same charge and the same mass" "Why?" "Because, they are all the same electron.
.....
I did not take the idea that all the electrons were the same one from [Wheeler] as seriously as I took the observation that positrons could simply be represented as electrons going from the future to the past in a back section of their world lines. That, I stole!
What's more important is that every hypothesis in science must be falsifiable. How could that idea be falsified?

I doubt that Feynman took that idea seriously. Especially with the notion of the many worlds interpretation of quantum mechanics.

Last edited by Pmb; Aug 27th 2017 at 06:06 PM.
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