On 10/20/2018 11:24 AM, Philip Thrift wrote:


On Saturday, October 20, 2018 at 10:33:04 AM UTC-5, Brent wrote:



    On 10/19/2018 11:32 PM, Bruno Marchal wrote:
    >> On 19 Oct 2018, at 23:43, Brent Meeker <[email protected]
    <javascript:>> wrote:
    >>
    >>
    >>
    >> On 10/19/2018 11:49 AM, Bruno Marchal wrote:
    >>> I work with people who studied religion all the times. You
    seem unaware that we can doubt Aristotle theology.
    >> You seem unaware that there is not such thing.  Your "Aristotle
    theology" is a straw man you invented to beat with stick labelled
    "primary matter". I'll bet that if you ask a 100 physicists, "Do
    you believe in primary matter." you'll get 99 answers of "What??”
    > Because they have been brainwashed since about 529, into the
    idea that “matter” is “primary matter”.

    No, they are not.  It's simply irrelevant to them.  They seek
    theories
    to explain phenomena.  They don't start by assuming some metaphysics.
    They only care that the theory works.  That's why it has been
    physicists
    like Wheeler, Tegmark, Hawking,...who have wondered why equations
    work
    at all.

    Brent



What physicist doesn't assume some metaphysical assumptions?

The 3 mentioned above talked  (1 still talks) about metaphysics all the time, of course. Even if they adopt a theory that someone else created, they are adopting the metaphysics of that theory. When Sean Carroll writes about the reality of the wave function, that's some heavy metaphysics.

Sounds like physics to me. Does Carroll say the wave function is "primary", that there can be nothing more fundamental?  No, he doesn't.  He knows that QM  and GR are incompatible and he no doubt hopes to find something that explains both of them.  Does he care whether that new thing is "primary"?  No.

Brent


Every language has a metaphysics.

- pt

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