Naive people do, but people with a clue *don't* think that `red is
something out beyond our eyes, some quality of light or something.' It's
*obviously* a construct. A nice simple discussion of the proof for this is
in Steve Pinker's charming new book HOW THE MIND WORKS. Or you could read
Land (old) or Zeki (current). Our experience of colour constancy is a
ceaseless collaboration between conflicting signals from outside the body
and `best guess' (and therefore fallible) evolved inferential algorithms on
the inside. So qualia are real - that's just the word we use to label
experience - but are not (and *cannot* be) indefeasible entities, which I
assume is Brent's claim.
Damien Broderick (not seeing red; quite calm actually)