Classical computationalism, connectionism, and computational neuroscience. Structuralist computationalism emphasizes organizationally invariant descriptions, which are multiply realizable.  In that respect, it diverges from computational neuroscience.  Structuralism is compatible with both classical and connectionist computationalism, but it differs in spirit from those views.  Classicists and connectionists present their rival positions as bold, substantive hypotheses. Chalmers advances structuralist computationalism as a relatively minimalist position unlikely to be disconfirmed.