From what I understand, humans can see red green and blue and everything in the middle. Some animals I’ve heard see more colors than us, so what’s to say that some things in nature are colors that we don’t see? Who’s to say that some apples are red? And instead a different color that we don’t have a name for because we can’t process it?
How can we tell if this “apple” is as a matter of fact “red”.
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>so what’s to say that some things in nature are colors that we don’t see?
Uh, almost everything radiates or reflects wavelengths we can’t see. They can ALSO reflect wavelengths we DO see at the same time.
Bird wings are a good example. They have coloration and patterns in the UV space that other birds can see, but we can’t. That doesn’t stop us from seeing the bird have blue wings.
>Who’s to say that some apples are red?
The measurable spectography of apples, and the definition of “red” as radiation with a wavelength of ~650nm.
This isn’t some mystic shit, we can measure it.
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