On Feb 27, 6:40 pm, Evgenii Rudnyi <use...@rudnyi.ru> wrote:
> On 27.02.2012 17:47 John Clark said the following:
>
> > On Sat, Feb 25, 2012 at 1:32 PM, Craig
> > Weinberg<whatsons...@gmail.com>wrote:
>
> >> There is no simulation of red. Red is only red.
>
> > But red itself is a simulation. Electromagnetic waves a length of
> > 700 nanometers can produce the quale "red" in the minds of most (but
> > not all) human beings if it enters their eye, so the red quale
> > simulates (represents) the location and intensity of 700 nanometer
> > electromagnetic radiation. But red can stand for other things that
> > have nothing to do with light; go into a pitch dark room and close
> > your eyes and apply gentle pressure to your closed eyelid, you often
> > see splotches of red. So in this case the red quale simulates
> > (represents) the location and intensity of pressure.
>
> You may want look at synaesthetes for whom red could appears for example
> when they hear a word "blue". You can certainly claim that in this case
> sound waves simulate red but then the question is what the intensity of
> 700 nanometer electromagnetic radiation has to do with this.
>
> Also I believe that one feels red not only with 700 nanometer wavelength
> but with other combinations of wavelengths as well. This is not one to one.

Even more so if your depart from vision and consider other senses,
such as taste and smell. There is no simple chemical property
that corresponds to sweet, bitter, etc.

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