X-Message-Number: 5496 From: Date: Fri, 29 Dec 1995 20:51:36 -0500 Subject: Lockwood & Perry Still more from Lockwood's MIND, BRAIN & THE QUANTUM (Blackwell, Cambridge, 1989): Many people--including, if I read him correctly, Dr. R.M. Perry--take the "many worlds" interpretation of quantum theory, due to Everett and others, as implying that the entire universe "splits" with every quantum interaction or act of measurement. A superposition of states "collapses" into just one of the eigenstates comprising the superposition, as we see it; from the alleged Everett view the superposition "decomposes" into ALL of the eigenstates, but each in a different "universe." (In what are all the universes linguistically embedded--a "multiverse?") According to Lockwood, however, this view is not correct; and it would e.g. violate superluminal propagation of causation; and it is probably not what Everett actually intended, even though he did not disavow some of the extreme interpretations of his publicists. I'll not attempt to go into further detail--of which there is a great deal--but again I recommend the book highly. At the very least, some of the people who think quantum theory is well understood need to read the reams of material still being written by physicists, mathematicians, and philosophers struggling to understand and interpret it. And a personal remark: Dr. Perry (among others) seems to suggest that many-worlds guarantees a multiplicity of near-identical continuers or reincarnates in the fullness of time. (There was even a recent TV series based on this; I think it was called SLIDERS.) I'm not sure why this should be the case. The mere fact of infinite variations does not guarantee that every possibility will be realized. As a crude analogy, I can easily draw an infinite number of sketches without any of them bearing the remotest resemblance to anyone's portrait. Robert Ettinger Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=5496