Abstract: There are two things that cognitive science needs to explain: (1) How and why organisms can do all the things they can do and (2) how and why organisms feel. Explaining doing -- Turing's problem -- has been dubbed the "easy" problem (though it's no easier than other problems in biological science, and we're nowhere near solving it). Explaining feeling has been dubbed the "hard" problem. The reason it is hard is that feeling keeps on turning out to be superfluous in any causal explanation of doing.
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