7/09/2006 11:14:00 PM   2006-07-09 RE: Color and visual strata / discreteness and resolution - "most notably it was predicted some 20 years before verification that marine fish that live just above the aphotic zone would have only one pigment, and that that one pigment would have a maximal sensitivity down around 450 nm (for us light at this wavelength would appear blue)." How would this tie in with visual strata in representing color as an informational entity?