On Tue, Oct 25, 2022 at 6:21 AM Lawrence Crowell < [email protected]> wrote:
*> The dynamic collapse models have some observable component to them that > make them testable. It appears they are falsified. Many Worlds > Interpretation and the Hugh Everett idea has no such thing. It is not > testable; it is in a way "safe" from falsificat* There is no way to falsify the conventional Copenhagen interpretation, but back in 1986 in his book "*The Ghost in the Atom*" David Deutsch proposed a way to falsify Everett's Many Worlds; the experiment would be difficult to perform but Deutsch argues that is not Many Worlds fault, the reason it's so difficult is that the conventional view says conscious observers obey different laws of physics, Many Worlds says they do not, so to test who's right we need a mind that uses quantum properties. In Deutsch's experiment, to prove or disprove the existence of many worlds other than this one, a conscious quantum computer shoots electrons at a metal plate that has 2 small slits in it. It does this one at a time. The quantum computer has detectors near each slit so it knows which slit the various electrons went through. The quantum mind now signs a document for each and every electron saying it has observed the electron and knows which slit it went through. It is very important that the document does NOT say which slit the electron went through, it only says that it went through one and only one slit and the mind has knowledge of which one. Now just before the electron hits the plate the mind uses quantum erasure to completely destroy the memory of what slits the electrons went through, but all other memories including all the documents remain undamaged. After the document is signed the electron continues on its way and hits the photographic plate. Then after thousands of electrons have been observed and all which-way information has been erased, develop the photographic plate and look at it. If you see interference bands then the many world interpretation is correct. If you do not see interference bands then there are no worlds but this one and the conventional interpretation is correct. Deutsch is saying that in the Copenhagen interpretation when the results of a measurement enters the consciousness of an observer the wave function collapses, in effect all the universes except one disappear without a trace so you get no interference. In the many worlds model all the other worlds will converge back into one universe when the electrons hit the photographic film because the two universes will no longer be different (even though they had different histories), but their influence will still be felt. In the merged universe you'll see indications that the electron went through slot X only and indications that it went through slot Y only, and that's what causes interference. I know that what I said in the above is a fair representation of what Deutsch was saying because some years ago I wrote to him about this and he said it was an accurate paraphrase. John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis> 74c -- 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/CAJPayv2QXd5Xe8rY9csftxfk%2BXgL_eDWhhKD%3DF9m%2BGiNSxKJUw%40mail.gmail.com.
