What's Out There?

[Angrboda]

I lean towards mereological nihilism, but to my mind, color and sound are primarily mental phenomena.  Yes, different objects reflect different wavelengths of light, but that isn't what makes us perceive it as one color or another.  There is a whole complex of processing in the brain which goes into determining what color we perceive, and is greatly influenced by context.  In short, color occurs in the mind, not in the world.