On Tuesday, October 25, 2022 at 1:41:05 PM UTC-5 [email protected] wrote: > 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. > > It has been a long time since I have read about this. As I recall Deutsch's hypothesis involved some scalar field. What you describe I think can be understood independent of any quantum interpretation.
LC > 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/5fd87736-17d5-4513-a3e8-544fcb6fbd17n%40googlegroups.com.
