(Untitled)

[mugrug]

If a photon is reflected off the surface of a table, and there are no light-recpetive retinal cells around to perceive it, does it make a colour?

Thus the world went mad, and I went with it.

Comments

[smof]

Depending on the wavelength at which it is moving, it is a colour.

(Assuming it's within the visible spectrum. But assuming makes an ass out of u and some guy called ming!)

[ice_lord]

it's not a colour. colour doesn't occur in the air, and it doesn't even occur at retinal cells - colour isn't colour until it reaches the brain.

if there's no brain around to perceive it then it's just electromagnetic radiation

[mugrug]

Ah, yes. Yet you couldn't describe the process by which it becomes a colour! That is beyond our simple human sciences. mwahahaha.... ok, kinda drunk. Bite me.