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OK, so was I (oversimplifying) - But a colour is still a representation of the *experience* of light of a certain wavelength hitting the retina and stimulating the brain. We label that experience as red so as to better talk about it with other people.
If your point was to use the example to show that there must be something more to life than electrical impluses by demonstrating the wonders of subjective experience, then I would disagree. But then, I missed the discussion when it happened somewhere else, so if I'm drudging up old stuff, apologies.
What I'm saying (rather obliquely) is that it's reasonable to believe in a billiard-ball world, and to enjoy experiencing the subjective sensations that we have access to without resorting to any hobgoblinry.
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