It is not the eye which interprets wavelengths it is struck by; it is the mind that interprets them. Science cannot read minds.
In other words, all that was proven by the results of the test to which kid-A referred was that at the same wave lengths people identify the same color labels, the degree of agreement between the subjects' interpretted perceptions cannot yet be tested scientifically. The results seem objective, but they are based on false (or at least subjective) premises.
Interesting point AuldSoul. I didn't major in neurosciences, but I would think that the cortical regions involved, the neural networks proccessing the input, collating it and how they perform those operations, are also basically the same among individuals. So I would expect most people to have very similar perceptions of physical reality if they were subjected to the same course of stimuli.
Without having that commonality of perceived reality (to borrow from HS), I don't think we could have come very far technologically (it would have been difficult to share learned observations, patterns etc).
I agree with you though that perception is not exactly the same for all of us. Actually, not even to ourselves at times. If you first stuck your hand into a bucket of water that was 15 degrees celsius, it wouldn't feel all that cold or warm to you. But if you then stuck your hand into an ice-cold pale of water for about a minute then back into that bucket of water that was 15 deg celsius, it would sure feel much warmer to you this time round. I know this effect occurs because the sensors are not gaging absolute temperatures but changes in state - the point still stands though- that perception can be subjective.
Rationally then, I'd have to say its difficult for any of us to ever say we have an absolute and objective grasp of reality. We'd have to concede that our perceptions and mental constructs may need to, or will change.
I liked Narkissos' analogy of rationality and mythical thinking being our legs in our journey. Rational thought is very important and I think the ancients were able to be just as rational in thinking as we moderns are. Just consider the mathematics and the physical principles that they already knew back then. A also think the mythical has worht. They are mental constructs generated to account for some intuitively perceived reality. They were interesting ways of describing realities about human interactions with one another and nature in lieu of the data that more advanced technology has now provided for us. I still think the mythical element is useful today in conveying insights about human nature in ways that can be appreciated and grasped by people of any intellectual level or cultural background.