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Article #5102

Re: QM non-causal?

#5102
From: Bronis Vidugiris
Date: Fri, 11 Dec 1992 18:16
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In article <mcirvin.724051030@husc8> mcirvin@husc8.harvard.edu (Matt McIrvin) writes:

)There is no extra postulate involved at all; the Everett interpretation
)merely states that the unitary evolution specified by ordinary quantum-
)mechanical dynamics must be taken seriously at all times.  Thus, when
)an electron is in a superposition of spin-up and spin-down states and
)you observe the spin, you end up superposed too, and so does everything
)that interacts with you, ad infinitum.  There's no added machinery for
)"world-splitting"-- just QM with no pruning of the wave function's 
)evolution, arbitrary or otherwise.
)-- 
)Matt McIrvin

This seems to imply half-alive half-dead cats - more formally, Schrodinger's
cat must also be in a superpostion of alive and dead states when placed
in the famous schrodinger apparatus, along with the measuring instruments
(not to mention the physicist/observer).

It seems to me that the much frowned upon view of 'many worlds' as parallel
worlds is simply an objection to what seems to me to be one valid
interpretation visualizing what a superposed cat / experimental device /
experimenter means by reifing the abstract mathematics involved - rather
like thinking of a 'phase space' as if it were a physical space.

A 'contionuously re-written history' seems to be another way of reifing the
same concept.

Does this sound like it is on the right track?
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References: <1992Dec6.052357.18470@oracorp.com> <419@mtnmath.UUCP> <1992Dec9.011426.5296@smsc.sony.com> <1992Dec10.141001.21374@sophia.smith.edu> <mcirvin.724051030@husc8>

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From: bhv@areaplg2.corp.mot.com (Bronis Vidugiris)
Subject: Re: QM non-causal?
Organization: Motorola, CCR&D, CORP, Schaumburg, IL
Date: Fri, 11 Dec 1992 18:16:08 GMT
Message-ID: <1992Dec11.181608.26612@lmpsbbs.comm.mot.com>
References: <1992Dec6.052357.18470@oracorp.com> <419@mtnmath.UUCP> <1992Dec9.011426.5296@smsc.sony.com> <1992Dec10.141001.21374@sophia.smith.edu> <mcirvin.724051030@husc8>
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