Metaphysics Defined Again, you’d be mistaken. Just read this passage again and tell me what you think Nagel has wrong when he spells out what Dennett says and what he thinks is wrong with it. That review is titled ‘Is Consciousness an Illusion?’, which is a constant theme in Dennett’s writing. — Wayfarer
'Curiously, then, our first-person point of view of our own minds is not so different from our second-person point of view of others’ minds: we don’t see, or hear, or feel, the complicated neural machinery churning away in our brains but have to settle for an interpreted, digested version, a user-illusion that is so familiar to us that we take it not just for reality but also for the most indubitable and intimately known reality of all. — Thomas Nagel, Is Consciousness an Illusion?
Above is what I presume to be a passage from Dennett quoted by Nagel in the passge you asked me to look at again. As I read it Dennett is saying that we don't perceive the processes that produce what we call our 'first person experience'; we are blind to its origin. We know intimately how it seems to us, and from that basis we interpret it as a kind of independent non-physical reality, whose nature we are certain we correctly intuit. It's the interpretation of consciousness that Dennett is questioning not the consciousness itself.
So this:
"Dennett asks us to turn our backs on what is glaringly obvious—that in consciousness we are immediately aware of real subjective experiences of color, flavor, sound, touch, etc. that cannot be fully described in neural terms even though they have a neural cause (or perhaps have neural as well as experiential aspects). And he asks us to do this because the reality of such phenomena is incompatible with the scientific materialism that in his view sets the outer bounds of reality. He is, in Aristotle’s words, “maintaining a thesis at all costs.”
I think is quite mistaken because Dennett is not asking us to turn our backs on our experiences of " color, flavor, sound, touch, etc.", which no sane person could deny we enjoy, but to question the naive interpretation of those experiences which purports to tell us what the true nature of the perceiver is: an independently (from the body) existent non-physical substance or essence or soul. Of course, as you say the "cogito" by itself is not a reification; it is the "ergo sum" which is the reification.The fact that Descartes' formulation may have been a "milestone' in the sense of being influential in the course of modern philosophy doesn't make it right. Spinoza was already onto Descartes' error long before Damasio.