On Saturday, January 5, 2019 at 4:26:11 AM UTC-6, Bruno Marchal wrote:
> On 4 Jan 2019, at 17:25, Philip Thrift <cloud...@gmail.com> wrote:
> Physicists today (as I've observed) are not (for the most part) real 
> materialists.
> That is true, and physicists have rarely problem with the consequence of 
> Mechanism. Now, some physicist can be immaterialist, but still physicalist 
> (like Tegmark was at some moment at least). The physical reality would be a 
> mathematical reality among others, but with computationalism, the physical 
> reality comes from a more global mathematical phenomenon based on the 
> behaviour/semantics of the material mode of self-rereyence (involving 
> probabilities, i.e., for those who have studied the self-referential modes 
> available, the []p & X modes, with X being either p, or <>t, or p & <>t).
> This makes mechanism testable, and if quantum mechanics did not exist, I 
> would have thought that Mechanism is already refuted.
> Bruno

"Physicalism"/"Physical" are words that needs deprecating, as they can mean 
(to some philosophers of science) "can be reduced to physics", and physics 
is what is currently-accepted in the physics scientific community.

(When I use "physical", I mean it in the sense of being "explainable" by 

It gets worse: "In this entry, I will adopt the policy of using both terms 
['materialism' and 'physicalism'] interchangeably, though I will typically 
refer to the thesis we will discuss as ‘physicalism’."

Better to just use "materialism" and reject the use of "physicalism" 
(unless it refers to a the particular meaning of "can be reduced to 
physics"), though materialism has a "weak" and "strong" definition.

Galen Strawson defines what "hard-nosed materialism" is:


But what exactly would be a "test for Mechanism"?

- pt


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