On 2/25/2020 4:06 AM, Bruno Marchal wrote:

On 24 Feb 2020, at 03:29, 'Brent Meeker' via Everything List <[email protected] <mailto:[email protected]>> wrote:



On 2/23/2020 6:17 AM, Bruno Marchal wrote:

On 23 Feb 2020, at 01:12, 'Brent Meeker' via Everything List <[email protected] <mailto:[email protected]>> wrote:



On 2/22/2020 3:52 PM, Alan Grayson wrote:


On Saturday, February 22, 2020 at 10:40:12 AM UTC-7, PGC wrote:



    On Thursday, February 20, 2020 at 1:55:39 PM UTC+1, Bruno
    Marchal wrote:


        On 20 Feb 2020, at 01:20, 'Brent Meeker' via Everything
        List <[email protected]> wrote:



        On 2/19/2020 12:15 PM, Philip Thrift wrote:


        Wittgenstein is at the core really of *linguistic
        pragmatism *

        https://en.wikipedia.org/wiki/Neopragmatism
        <https://en.wikipedia.org/wiki/Neopragmatism>

        Languages are tools. There is no truth "out there".

        My view is that "true" means different things in
        different contexts.

        And in different modes (of self-reference). The platonists
        dis understand that the absolute truth requires faith in
        something beyond “my consciousness” or “consciousness” (to
        take into account Terren Suydam’ remark).


    Wittgestein up to now still has the upper hand with those old
    arguments over anybody proposing science based ontological
    packages metaphysically: language will seduce people to
    overgeneralize, to confuse personal mysticism with reality, to
    engage in false equivalencies between terms used in formal
    contexts and everyday use of language, scientism etc. Slowly,
    yours truly is coming around to the idea that folks agreeing
    on ontology/reality/religion, which would guide research in
    some allegedly correct direction; spilling over positive
    effects into the world... that Wittgenstein may prove correct
    in that this is a confused product of muddled armchair
    thinking, not because of his generally negative stance, but
    because there seem to be positive developments out there that
    he couldn't have informed those arguments with.

    I see/predict metaphysics shifting from the naive armchair
    forms of identity, reality, matter etc. practiced here on this
    list with profound erudition, walking in circles for 20 years
    now (Wittgenstein says thousands of years) to optimization and
    more efficient pursuit of value and benefit questions instead,
    through say orchestration of highly sophisticated forms of
    organization applied to education, governing, finance,
    technology, problem solving, applied or theoretical etc. that
    are permissionless, universally accessible, require no
    hierarchy of politics, charlatan experts, control freaks,
    their sycophants, and bibles of some Messiah achieving
    miracles such as eternal life, self-duplication etc.

    Metaphysical setups that place less emphasis on truth, trust,
    power, control, or proof and more emphasis on "can entities
    such as ourselves be highly organized, solve specific survival
    problems over short and long terms, without trusting each
    other + instead assuming that folks will be opportunistic and
    idealistic?" Example: we don't agree on what reality may be,
    but we do agree on the need for habitable living space in the
    long term, nutrition, water, health, limiting
    self-destruction, expensive wars, standards of living etc.
    quite clearly. There ARE more appropriate politics and
    economics on the horizon. Metaphysics here, shifting our
    old-school conceptions of what first principles are, and you'd
    refute Wittgenstein instead of running from him. Engineering
    incentive and not what the game is but /how/ the game of life
    on this planet could be.


        About this, it is clear to me that in “I think thus I am”,
        Descartes use the “first person” I. Indeed he start from
        the doubt. Dubito ergo cogito, cogito ergo sum. Descartes
        did not prove the existence of Descartes, bit of his own
        consciousness, hoping others can do the same reasoning for
        themselves. Consciousness always refer to a first person
        experience implicitly: like God (truth) it is not a thing.


    You concede to Terren that "true means different things in
    different contexts" but everyday like clockwork you still
    barrage the list with your use of "large truth, 3p, reality
    that cannot be named, mechanism is incompatible with
    physicalism" and all the rest of it. I used to wonder why you
    don't pursue contact with linguists, physicists, a wider
    audience, and philosophers but this has ceased to surprise me.
    PNGC


I think I finally got it -- what mechanism means for Bruno -- namely, that a human being can be perfectly simulated by a computer. But if that's what he means, how does it follow that mechanism is incompatible with physicalism?

Because all possible computations (in the Turing sense) are implicit in arithmetic.  And Bruno thinks arithmetic exists, and hence all threads of human (and non-human) consciousness exist in arithmetic.

What exactly does Bruno mean by physicalism?

That physics is the basic science; i.e. the ontology of physics, whatever it is, must give rise to everything else, including conscious thought.

Why the incompatibility? Bruno? TIA, AG

Bruno's a fundamentalist.  You can only have one, really real, true fundamental ontology.

Given the sense of “fundamentalism” in the religious (pseudo-religious) domain, it might be useful to make precise that I do not defend any theory or religion. I just say that IF we can survive with an artificial brain, then physics becomes the science of available predictions by universal machine implemented in arithmetic.

If arithmetic exists independent of physics.

Then you should be able to give a definition of natural numbers, based on physical laws, and express those physical laws without using the notion of numbers. I don’t see how this is possible, at least with Mechanism. You have to assume something Turing universal, to get something Turing universal. We cannot prove the existence of something Turing universal withou

Definitions are in words.  How do you define the words.  As JKC correctly points out, examples are more important than definitions. I don't use physical laws to define natural numbers, I use ostensive definition by examples...which is exactly how you learned numbers at your mother's knee.  The concern for definitions and axioms only arose when you wanted to reason about numbers too big to comprehend or write down.

Brent
t postulating the existence of something Turing universal.

Bruno

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