A few days ago I read that some scientists suspect the perception of the color blue is a recent innovation for humanity. They were put on to this theory by the fact that Homer never mentioned the color blue in his works (nor did most ancient texts such as the Bible). Homer’s description of the Aegean as the “wine dark sea,” a sea that to us today is decidedly blue, led them to conclude, either the sea was a different color then (wine is not blue even at its darkest) or something was different in the color perceptions of the ancients. They then discovered that people in societies today that have no word for blue, when asked the color of the sky, most often respond that it was colorless. A modern tribe that has no word for blue but several for green can see differences in green not perceived by the rest of us. So given that colors are merely reflections of certain frequencies of light, what is going on? This freaks me out. When I look at the deep blue skies over the golden foothills what, if anything, am I seeing?