I think its more likely that different eye/brain sets might see the same colour very slightly shifted, one way or the other, on the spectrum. One person might see it a little redder or bluer than another. But, as we decided before, one can never really know. Its not the same as colour blindness. My guess is that normal human eyes all see the spectrum the same way and it is in the brain that differences might arise ... if they do.
Don _______________ Dr E D F Williams http://personal.inet.fi/cool/don.williams Author's Web Site and Photo Gallery See New Pages "The Cement Company from HELL!" Updated: August 15, 2003 ----- Original Message ----- From: "Bob Walkden" <[EMAIL PROTECTED]> To: "Ryan Lee" <[EMAIL PROTECTED]> Sent: Thursday, November 06, 2003 5:31 PM Subject: Re: Colour fidelity & low-light AF of *ist-D > Hi, > > Thursday, November 6, 2003, 2:24:49 PM, you wrote: > > > It's an interesting thought, but what I perceive to be blue might actually > > what you perceive to be green. Imagine people around you who go thru life > > seeing 'blue' vegetables (though it seems perfectly normal to them *because* > > that's what they always known the label 'green' to refer to). And how would > > one actually prove any of this? > > I don't think it's empirically testable. If two people attach the same > label to the same experience then that is all we can know, or need to > know. I have no empirical evidence that other people think; you could > all be automata* as far as I know, but I assume that you all do think. > It's similar to the Turing** test, or these games of Chinese boxes that > AI researchers enjoy so much. > > Cheers, > > Bob > > *as a matter of fact I happen to think exactly that, except that I > include myself as an automaton. It doesn't alter the argument. > > **I've always believed that 'the Who' of long ago was a Turing test > that some researcher was conducting. > > -- > Cheers, > Bob mailto:[EMAIL PROTECTED] >
