In either case, whether this “stuff” is “physical” or “non-physical”, Stillthinkin still has the same problem. His position still seems dualistic. That there is a fundamental component that humans possess that allows us to “do logic” that nothing else has or can have; a soul, an incorporeal ball of think, or whatever you’d like to call it.
If we know how matter behaves, according to the laws of physics, chemistry, etc., and if we know that we human beings do things that merely material, determined things dont do, then we
all have a problem with materialism. I think people should be a little bit more skeptical about materialist claims. I am getting the impression that the adherence to it is much closer, rationally speaking, to "blind faith". People seem willing to dismiss all of human experience as illusion rather than deny materialism, much the same way creationists claim that the devil planted dinosaur bones to deceive evolutionists.
As long as everything is made from the same “stuff”, and this “stuff” is capable of “doing logic” when in the configuration of our as-perceived physical brain, then, at least theoretically, this “stuff” may be capable of “doing logic” in other as-perceived physical configurations. Stillthinkin appears to be denying even the possibility.
People were not getting the case of "doing logic", so I switched to "making mistakes". So the question became, can something material make a mistake? The case of human beings begs the question, since we dont really know (strangely, enigmatically) of what "stuff" we are made... we need to clarify whether things material - electrons, atoms, molecules, mixtures, etc. etc. - which always obey the laws of physics, could possibly ever explain what human beings are and do. We know matter always does exactly what it "should", according to deterministic laws of physics. We know machines dont make mistakes. Even when they break down (according to our evaluation) they do so precisely because of the laws of physics, the properties of different materials, and so on. So I believe that at this point, we are asking "if matter cannot make a mistake, but human beings do, then what is the explanation?" Some say it is an illusion/delusion.
I may ask, in what configuration do we put matter, so that it ends up not obeying the laws of physics? It should be obvious that no level of complexity, no configuration, would ever amount to matter making mistakes.
Also, I think all monisms are describing the exact same thing, the baggage and confusion only comes into play when attempting to address the unknown/unknowable.
You assume that monism must be true, and dualism must be false. As FTB said (more or less), if two principles are necessary, then monism is nonsense. On the face of it, we are aware of many many different kinds of things - in a monist explanation, how would there ever be "two" anything? By what principle would two things arise from an absolute monist reality? But be that as it may, the issue with materialist monism is that it is much too small to contain known phenomena - but if you insist, we can retain monism by switching to "existential monism", where being is the basic principle of all things, rather than matter.