Jesus man, this isn't that difficult of a concept. Is everything made up of the stuff of physics, or not? — Marchesk
Again, it seems like you're wanting to simply rehash the old physicalism vs dualism (or whatever) argument. I'm not interested in that. We've done that a bunch already. — Terrapin Station
What I was hoping to discuss with you in this tangent was "What does 'entailed by physics" mean exactly?" We never got very far with that. — Terrapin Station
That the physics of the world necessitates the existence of everything. Which means that particles, fields of force, spacetime, constants, and laws of nature determine absolutely what can and what cannot exist. — Marchesk
ut you don't have to be a realist on physical law to be a physicalist either. — Terrapin Station
Physicalism need not have anything to do with the science of physics. — Terrapin Station
And one need not be a realist on logic, either. — Terrapin Station
So how is it the case that physicalism is necessarily about "what's logically necessitated by physics"? — Terrapin Station
The science of physics is not the same thing as what the science of physics studies. — Terrapin Station
Okay, sure. But you can't argue for physicalism by positing something not part of the science of physics, — Marchesk
The only thing that's required is that you think that everything is physical. You can believe that the science of physics has just about everything completely wrong and still think that everything is physical. — Terrapin Station
That's got to be about the stupidest comment I've ever heard. "Just in case your physicalism isn't a deferral to the science of physics, then we have no way to tell what in the world you might be referring to by 'physical.'" — Terrapin Station
nd if you are, you know that materialists go back hundreds and hundreds of years, right?--long before there even was anything like a science of physics per se. So how do you make sense of there being materialists prior to the formal development of science? — Terrapin Station
Because of the Greek atomists positing that atoms and the void were all that ontologically existed. Everything else was made up of that. I suppose that Thales and Aristotle posited alternative materialistic views with water or the five elements.
But those have been outdated by the findings of science. You can't seriously maintain an old-fashioned version of materialism. We know they were inadequate. There's more than atoms and the void, or water, or the five elements. — Marchesk
You're getting confused here regarding the exact content of their views with the sort of thing they were talking about. What do all materialists pre-science have in common that makes them materialists? — Terrapin Station
A clue should be in the term "materialism"--materialists/physicalists generally think that everything is material or matter as well as perhaps "forces" of matter and so on. — Terrapin Station
Really? You fall back on matter after rejecting physics? BTW, there is a reason it's called physicalism. And that reason is because physics has shown that the world is made up of more than matter, and that matter itself isn't even truly fundamental. It's a form of energy. — Marchesk
That would matter if physicalism were adherence to whatever the received view is in the scientific discipline of physics, but it isn't. — Terrapin Station
TThe idea that energy can obtain apart from matter is part of the "crap" I was referring to earlier. It's incoherent. — Terrapin Station
I think you have your own version of physicalism as evidenced by: — Marchesk
It's not just "my form." It's ridiculous to think that every (other) physicalist is merely deferring to the science of physics, and that that's all there is to the position. — Terrapin Station
Of course it's not just deferring, since it's a philosophical position. But the term is physicalism for a reason, — Marchesk
The term changed from physicalism because "materialism" fell out of fashion, again with Marxist connotations being a major part of the reason for that. — Terrapin Station
The ontology of materialism rested upon the illusion that the kind of existence, the direct 'actuality' of the world around us, can be extrapolated into the atomic range. This extrapolation, however, is impossible... atoms are not things. — Werner Heisenberg
Then came our Quantum theory, which totally transformed our image of matter. The old assumption that the microscopic world of atoms was simply a scaled-down version of the everyday world had to be abandoned. Newton's deterministic machine was replaced by a shadowy and paradoxical conjunction of waves and particles, governed by the laws of chance, rather than the rigid rules of causality. An extension of the quantum theory goes beyond even this; it paints a picture in which solid matter dissolves away, to be replaced by weird excitations and vibrations of invisible field energy. Quantum physics undermines materialism because it reveals that matter has far less "substance" than we might believe. — Paul Davis and John Gribbin
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