Gunnar:
If I understand you correctly I'm happy to accept the amendment from "as" to "as is."
What I had in mind regarding the reality of the 'illusion' of color was a host of things, from understood mechanisms like the electro chemical discharges of neurons in perceptual pathways in the brain to the less tangible notion of a mind as something more than a sum of physical properties.
A bit off in the weeds, but fun, is a visual demonstration of the physicality of perception at:
http://videocast.nih.gov/summary.asp?Live=11769
You may want to jump to minute 12:00. This of course is extending Terrance's illustration way beyond his intention, but it is an interesting example of the physicality of even something some consider an 'illusion.'
So I accept your amendment from "a reality... as" TO "a reality...as is" gladly, with the note that the distinction between physical and metaphysical realities, if there is one (divided versus integrated worldview, dualism, etc.), is just not well understood. So I may have overstated saying "just as much."
Regardless, I argue for an epistemological foundation such as critical realism that both recognizes the role of individual and social contexts and reality external to those.
Mike
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