What's Out There?

[Mudhammam]

By color I mean simply ... red, blue, yellow, etc. These are how we experience objects, from  the reflections of different light wavelengths, which appear in our vision, and as Jorm said, are processed by the brain... but we wouldn't say that the objects or energy itself contains "redness" or "blueness" as an intrinsic property... I presume anyway.

I don't see any reason to suppose that our perceptions must be as things are.  Physicists tell us that solid objects are really mostly empty space with tiny particles moving about (or at least, that is what they said a few years back).  That is not how I experience my dining room table.

As for the color words, they are ambiguous, in that sometimes "red" means particular frequencies of light.

Sure, but we still operate from the framework --- when reconstructing the history of the planet, or the solar system, or the universe, for example --- that there are macroscopic structures that exist in the same manner as perceived by us, even when no one is around to view them... I'm just trying to figure out what they might appear like, if color is only a subjective phenomenon.