Derealization

[rasomaso]

Well yeah, the pine is reflecting only selective amount of waves, so it appears green. But how can you tell that what you see as green, is not seen by someone else as lets say orange? They would probably percieve it darker than your general orange to match the brightness, they may even see other percieved colors that you are unable to, to match the visible spectrum and not see some percieved colors you see, but you could both call it just green and agree with each other while both seeing the same wavelengths.

note: by percieved color I mean how the it appears to you, how your brain translates it into image. I don't even know if I spell it right, sorry. lol