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After reading this paper, Richard Rorty sent
the following comment:
Doubtless in some sense I am doing "epistemology" and for all I know the
name will survive as that of something which has little to do with Kant. But I am
not convinced that philosophers are making themselves as useful to cognitive
science as they claim, or that cognitive science is more than an awkward
place-holder for neurology. My hunch is that when neurology comes into its own,
notions like "cognition" will dry up and blow away. (See Michael Williams UNNATURAL
DOUBTS for a good argument that 'knowledge' or 'cogntion' is not profitably thought
of as a natural kind.)
I find this comment extremely
interesting, because it shows that despite numerous surface differences, Rorty does
agree on this point with the various neurophilosophers who call themselves
eliminative materialists. (As does the great prophet of neurophilosophy, U.T.
Place. See his comments in the selections from the CQ mailing list). The great
apparent differences between Rorty and the neurophilosophers spring from the fact
that they each reacted to this shared assumption in opposite ways: Rorty by
abandoning epistemology, and the neurophilosophers by becoming neuroscientists.
However, as philosophers like the Churchlands have spent more time actually
involved with neuroscience, they have become more skeptical of the hunch that Rorty
mentioned above. This is why the Churchlands now speak more in terms of
co-evolution rather than elimination. (See P.S. Churchland 1983)
The basic assumption of Rorty's critique
of epistemology--that epistemology must close up shop because it has no specialized
domain it can call it's own-is no longer accepted by the scientific community. In
almost every branch of science today, cross-disciplinary work is the rule, not the
exception. And in Cognitive Science, it is an empirical fact that the attempt to
come up with a purely neurological set of categories to replace mental ones has not
worked as neatly as everyone expected it would. Contrary to everyone's
expectations, science is not moving closer to the language spoken by Rorty's
Antipodeans in Chapter 2 of Philosophy and the Mirror of Nature. (I am
tempted to call the country in which they live "Churchland".) A firing C fiber is
not identical to a pain,unless it occurs within the context of a brain, and no one
could make sense out of anything happening in the brain unless one has knowledge of
how the brain helps a living organism function in a world. Could anyone make sense
out of the brain's face recognition circuitry if we did not know what a face is?
Could we understand why face recognition is so important without concepts like "kinship" and
"predator"? This is why a variety of different sciences have to speak
to each other in order to understand the mind, which is why cognitive science came
into being.
Many people in Cognitive Science believe that someday cognitive science will
come up with a single language that explains the mind, and some believe that this
language will be neurological. (See for example Baars'
commentary on my psychology paper.) But until that happens (or if it never
happens) people who specialize in not specializing are needed to help these various
disciplines keep what Sellars called "the eye on the whole". That is what
philosophers are trained to do, and when what they are keeping their eye on is the
whole of knowledge, what they are doing is epistemology.