Wine dark sea etc
Wavelengths exist, color is concept
Well, it is all conceptual isn't it, because ultimately everything is an interpretation from the brain.
Ultimately ultimately (actually ultimately; super ultimately, even), physical reality, and with it photons, exist independent of human brains. [/pointdexter]
What makes it light though?
And from an eastern philosophical perspective (not sayingit is true) there is no denial that
something exists. I mean you can say that all we are seeing is the inside of our own head, but at the same time, our own head exists within
something. Yet, there is truth in that reality is created by the mind. Or another way of putting it, is an
interpretation of the mind, and evidently it is... so... what? Well, perhaps it is all one mechanism. In other words maybe it is not necessarily an interaction between the external and internal worlds, but rather a transaction. You can't have one without the other. You can't have a seller without a buyer, you can't have a buyer without a seller. In other words the idea in more eastern philosopy is that the external world and the internal (you) are intrinsically connected. It is all one process.
And regardless of that which is just one way of looking at it, that is either true or not, the point being being made isn't that
something doesn't exist, it is that our perception of what exists is in many ways conceptual. As was pointed out, light is also a wavelength. What makes it 'light' is conceptual. It is photons hitting the back of the eye the retina, that in turn being converted into electrical signals, and the brain interpreting those signals as light.
Same with sound. Sound is just vibrational waves hitting your ear drum. What's more it is not directly those vibrational waves your brain is interpreting, it is the vibration of your ear drum, which is in turn converted to electrical signals and interpreted by the brain as sound. And I have thought actually, that perhaps there is no real reason why the brain couldn't interpret it a different way. Like visualisations on your computer when you play music. You get a visual pattern. What if the brain interpreted 'sound' as visual patterns? Then sound would be purely visual. The whole notion of sound would be completely inconceivable. And thus explained quite clearly that sound is jut a concept.
