Gary Childress wrote: ↑Mon Jan 06, 2025 1:00 am
BigMike wrote: ↑Sun Dec 22, 2024 9:38 am
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On the face of it, I sort of gather that you would be in the camp of eliminative materialism with respect to your understanding the mind. In other words, there is no "ghost" in Descartes' "machine", only the machine. Would that be an accurate way of summarizing your position?
And if it is an accurate summary of your position, does that satisfactorily explain the world we live in in its entirety? For example, do you believe that computers can be made to feel pain or can experience a color as being "pleasant" or "attractive"? Is there nothing in this world that cannot be adequately explained in terms of mechanisms in motion?
And if you do count yourself as an eliminative materialist, do you see it as a kind of provisional point of agreement among the sciences not to delve into the untestable and unprovable, in a sense a bit like a scientific positivism--that brains can only be explained in terms of the testable and observable as a matter of convention? In another sense, it might be along the lines of Wittgenstein's "there of which one cannot speak, one must remain silent". We can only talk about what we know of the world and what we know of the world maybe isn't a whole lot in terms of explaining everything we think seems to be out there.
There's a very interesting lecture that Naom Chomsky gives (I think it was given in the Netherlands, IIRC) that is almost mystical in nature where he claims that contemporary science has done more to throw out the "machine" than to throw out the "ghost" of consciousness. Not sure how correct that is but he does point to things like "spooky action at a distance" in Quantum physics which seems to defy conventional material explanations. In other words, it would involve the instantaneous transmission of information over vast distances that defies the speed of light or the existence of a "particle" to carry it. From there he seems to suspect that there are phenomena in this world that we just can't capture with the physical sciences as practiced by human beings. I'll try to dig up the lecture if you are interested in seeing it.
Gary, you're correct that I reject the notion of a "ghost in the machine," whether it's tied to the pineal gland or any other organ. My view aligns with eliminative materialism in that I don't see evidence for anything outside the physical, causal processes of the brain and body to explain consciousness. But let's unpack your questions further.
Do I believe computers can "feel pain" or experience the "pleasantness" of color? Not in the same way humans do. Pain and qualia—our subjective experiences—are emergent properties of highly complex neural networks shaped by evolution to ensure survival and reproduction. A computer processes information, but it doesn't have the biological apparatus or evolutionary history that gives rise to the subjective experience we call "pain" or the aesthetic response to color. That doesn’t mean these processes are outside the realm of physical explanation; it just means the mechanisms are far more intricate than anything we've replicated artificially.
As for whether eliminative materialism adequately explains "everything," the answer depends on what you mean by "explain." If you’re looking for mechanistic, testable accounts of mental phenomena, it’s a robust framework, though incomplete in detail. If you’re asking whether it satisfies metaphysical yearnings for mystery or transcendence, it won’t. But science isn’t obligated to provide existential consolation; its job is to describe how the world works based on evidence.
Regarding quantum entanglement, it’s a fascinating phenomenon, but it’s not unphysical—it simply defies our everyday intuition. Entanglement doesn’t transmit information faster than light; it reflects correlations established when particles interact, no matter how far apart they are. It's counterintuitive, yes, but it's consistent with the mathematical framework of quantum mechanics, which remains firmly within the bounds of physical explanation.
Chomsky’s point about science challenging the "machine" more than the "ghost" is interesting, but it conflates "material" with "mechanistic" in a classical sense. Modern physics, with its probabilistic nature and non-local effects, expands our understanding of the "machine" rather than invalidating it. These phenomena don’t imply anything mystical or supernatural—just that our intuitions, shaped by macroscopic experiences, aren’t suited for the quantum scale.
If you have that Chomsky lecture handy, I'd be curious to hear more, but I’d wager that even his speculations don’t escape the broader deterministic framework of causality, whether they are intuitive to us or not.