| Wavelengths of light are real and can be measured exactly, but we do not have any way to measure the perception of color. Just because we can detect something with instruments other than our bodies does not justify our own perception of it.
I am not saying that there is no real justification for seeing red differently from blue, I am saying that there is no real reason blue actually looks... well blue. If you open someone's head and take a look around, you will find lots of pink, red, and some white, but nowhere will you find a nice deep blue.
If we were all blind and navigated by echolocation, I doubt we would assign any special significance to that range of the electromagnetic spectrum that is labeled as visible light. Sure if given a definition of colors and the wavelengths they represented we might be able to measure the 'color' of something, but that would give us no real understanding of what color is.
So, in conclusion, while we might be able to measure that part of the world that gives rise to the perception of color, we are unable to directly measure the perception of color itself. |
