The first point (analogizing the hard problem to the reaction to Darwinism) is a very common rhetorical move: an analogy and history of ideas, which is convincing to many people, but what does it prove? > A philosophical zombie would claim to know what subjective experience is; otherwise, it would be empirically distinguishable from a human. Chalmers’s point is that the existence of the hypothetical, irreducible cons…
On the other hand, "consciousness" concept might be as much useful for modeling thinking as “the four elements” for describing anatomy (not useful at all)—and we create better models eventually.