And like, I'm sorry, it just doesn't make sense! Why are we supposed to be sad? It's like borrowing a critique of LLMs and arbitrarily applying it humans as like a gotcha, but I don't see it. Like are we all supposed to be metaphysical dualists and devestated by this? Do we all not believe in like.. nuerons?
But alas I see the writing on the wall here either way. I guess I am supposed to go cry now because I have learned I am only my brain.
At the risk of ruining 'sowbug having their fun, I'm not sure how Julian Jaynes theory of origins of consciousness aligns against your assumption / reduction that the point (implied by the wiki article link) was supposed to be "I am only my brain." I think they were being polemical, the linked theory is pretty fascinating actually (regardless of whether it's true; and it is very much speculative), and suggests a slow becoming-conscious process which necessitates a society with language.
Unless you knew that and you're saying that's still a reductionist take?.. because otherwise the funny moment (I'd dare guessing shared by 'sowbug) is that your assumption of fixed chain of specific point-counter-point-... looks very Markovian in nature :)
(I'm saying this in jest, I hope that's coming through...)