On 3/1/2022 4:00 PM, Tomas Pales wrote:

On Wednesday, March 2, 2022 at 12:17:43 AM UTC+1 meeke...@gmail.com wrote:



    On 3/1/2022 1:59 PM, Tomas Pales wrote:

    On Tuesday, March 1, 2022 at 8:14:31 PM UTC+1 meeke...@gmail.com
    wrote:

    But before we can assess whether something has a consistent
    description we need to specify the description precisely. With a
    vague description we may be missing an inconsistency lurking
    somewhere in it or there may appear to be an inconsistency that
    is not really there. For example, if we try to describe a
    quantum object in terms of classical physics the description
    will not be precise enough and the assumptions inherent in those
    terms will be contradictory. The ideal description would reveal
    the complete structure of the object down to empty sets but we
    can't physically probe objects around us to that level.

        I think that's a cheat.   It's not that classical physics was
        imprecise.  It was just wrong.  QM and Newtonian mechanics
        even have different ontologies.  If you're wrong about the
        subject matter no amount of logic will correct that.  Logic
        only explicates what is implicit in the premises.  It's a
        cheat to appeal to an ideal description when you have no way
        of producing such a description  or knowing if you have
        achieved it or even knowing whether one exists .


    It's not a cheat, it's a complete mathematical description. Every
    mathematical structure can be ultimately described as a pure set.
    Classical physics and quantum physics have not been described as
    pure sets and so they are not complete mathematical descriptions.
    The fact that it is not feasible for us to achieve such a
    description of physical structures doesn't mean that it doesn't
    exist.

    And the fact that you can form a sentence using the word doesn't
    mean it exists either.


Which word?

"Complete" mathematical description.

Brent

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