On 05 Mar 2013, at 08:43, Jesse Mazer wrote:
On Mon, Mar 4, 2013 at 11:27 PM, Pierz <[email protected]> wrote:
Really Craig? It invalidates mechanistic assumptions about eyes? I'm
sure the researchers would be astonished at such a wild conclusion.
All the research shows is brain plasticity in interpreting signals
from unusual neural pathways. How does that invalidate mechanism?
Yes, I was confused at first by the statement in the first paragraph
that the eyes "can confer vision without a direct neural connection
to the brain" (maybe Craig was confused by this too?), but it seems
that by "direct neural connection" they just mean an optic nerve
wired directly to the brain, bypassing the spinal cord like the
optic nerve normally does, since later in the article they do
mention the eyes were connected (indirectly) to the brain via the
spinal cord: "No one would have guessed that eyes on the flank of a
tadpole could see, especially when wired only to the spinal cord and
not the brain."
Even that would not be conceptually astonishing. My computer is not
wired to anything, and I can still send you a mail. It would have
meant only that optic cells have some wifi systems. Cute, without
doubt, but still not a threat for computationalism. Improbable also,
but who knows.
Bruno
Jesse
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