The question then arises: what does consciousness add to what unconsciousness can achieve? To put it another way, what mental processes are there that can be performed only because the mind is conscious, and what does consciousness contribute to their performance? Nobody has an answer to this question for any mental process whatever. As far as anybody knows, anything that our conscious minds do they could do just as well if they weren’t conscious.

Jerry Fodor on Dan Lloyd's Radiant Cool, LRB 04-03-04