On Wed, Oct 16, 2019 at 7:53 PM Bruce Kellett <[email protected]> wrote:
*> The quantum erasure-delayed choice experiments that have been done,* > True. > * and discussed by Carroll (in his book and on his blog)* > True. * > are entirely equivalent to Deutsch's thought experiment.* > Bullshit. Where is the intelligent quantum computer? Where is the signed document saying the mind has observed each and every photon and knows which slit each photon went through but not mentioning which slit that is? Where is the fact that the very last step in Deutsch's experiment is not erasing the which way information but is looking at the developed photographic plate? *> The decision to erase or not erase the welcher weg information until > after the photons have hit the screen was a central feature of these > experiments* > *NO!!* Deutsch made it clear you erase the which way information AFTER the photons have passed the slits but BEFORE the photons hit the screen! I know this for a fact because 30 years ago when I first heard about his idea I specifically asked him about this very point and he said the erasure must be BEFORE anything hits the screen. > *>Explain why the experimenters took trouble to do it *after* the photons > hit the screen!* > After? Took the trouble? After would be easy, and pointless. It is much more difficult to erase the which way information *after* the photons hit the slits but *before* they hit the screen, it would also be far more informative. > * > Deutsch was simply wrong when he thought that his experiment would > "prove" the existence of many worlds.* > Actually Deutsch didn't say that, he said his experiment would test Many Worlds not prove it correct. When the exparament is actually performed for all I or Deutsch knows it could prove that the Many Worlds idea is dead wrong. I've already told you what my best guess on the outcome so what is your prediction? When that photographic plate is developed will there be interference bands on it or not? John K Clark -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAJPayv1UxRczoq2RE2DJxnUHQ0bcz5GhOEZAQc4NcMM285v-5A%40mail.gmail.com.
