But it could do those things without ever experiencing yellow. A
traffic signal could look like the smell of burnt toast and achieve
the exact same functionality.Yellow isn't just some variable used as a
placeholder. It has a specific character than must be seen first hand
to have any understanding of. Without that subjective experience of
what yellow looks like, you're just simulating behaviors of yellow-
sightedness.

On Jul 11, 1:49 pm, meekerdb <meeke...@verizon.net> wrote:
> On 7/10/2011 6:20 AM, Craig Weinberg wrote:
>
> >> What in the brain would be not Turing emulable
>
> > Let's take the color yellow for example. If you build a brain out of
> > ideal ping pong balls, or digital molecular emulations, does it
> > perceive yellow from 580nm oscillations of electromagnetism
> > automatically, or does it see yellow when it's own emulated units are
> > vibrating on the functionally proportionate scale to itself? Does the
> > ping pong ball brain see it's own patterns of collisions as yellow or
> > does yellow = electromagnetic ~580nm and nothing else. At what point
> > does the yellow come in? Where did it come from? Were there other
> > options? Can there ever be new colors? From where? What is the minimum
> > mechanical arrangement required to experience yellow?
>
> When the aforesaid ping pong ball brain can cause the word "yellow" to
> be enunciated and/or written on all and only occasions that normal
> English speakers do.  When it anticipates traffic signal lights turning
> red.  When it identifies sour fruit.....
>
> Brent

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