On 8/8/2018 12:41 PM, [email protected] wrote:


On Tuesday, August 7, 2018 at 5:33:57 PM UTC, Lawrence Crowell wrote:

    On Monday, August 6, 2018 at 4:54:28 PM UTC-5, [email protected]
    wrote:



        On Saturday, August 4, 2018 at 10:16:17 PM UTC,
        [email protected] wrote:

            As long as the universe is not resolved into individual
            subsystems *(that is, no tensor decomposition of the WF)*,
            there is no measurement problem.

            IMO, highly doubtful, or minimally outside the domain of
            quantum theory where there is such a thing as
            measurements, and thus the dualism being denied as the
            conceptual solution of the measurement problem.
            (https://arxiv.org/pdf/quant-ph/0312059.pdf
            <https://arxiv.org/pdf/quant-ph/0312059.pdf>, page 8, bold
            added). AG


        He does say that decoherence theory doesn't solve the
        measurement problem, yet he attributes it to decomposing the
        universe into individual subsystems. Why would the
        decomposition have that result? Am I misreading his position? AG


Why would decomposition have/what/ result?  The result of "decomposing the universe into individual subsystems"?  The result of "not solving the measurement problem"?

Decoherence doesn't solve the measurement problem because it doesn't quantify the probability; it doesn't even show why there is a probability measure.  If you can show that there is a probability measure, then Gleason's theorem tells you that it must be the Born rule.

Brent

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