For two things both to believe that snow is white, they need not to be physically similar in any specifiable way, but they must both be in a functional condition or state specifiable in the most functional language; they must share a Turing machine description according to which they are both in some particular logical state (which is roughly like two different computers having the same program and being in the same place in the program). … it is a type functionalism—each mental type is identifiable as a functional type in the language of Turing machine description.
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About Daniel Dennett
Daniel Dennett was a 20th-century American philosopher. Daniel Clement Dennett III was an American philosopher and cognitive scientist. His research centered on the philosophy of mind, the philosophy of science, and the philosophy of biology, particularly as those fields relate to evolutionary biology and cognitive science. Read more on Wikipedia →