Care to go crazy? Digest this little bit...
Who says we interpret the world the same way? Who says the color you see is the same I see? What if a circle to you is a square to me? It's a strange world out there....
Granted, the third question I pose is a little high on the "doubt it" scale, but what about that second question? Colorblindness...? 
I have given the color thing a lot of thought...strangely enough, The Matrix is what got me thinking... (the part where Morpheus tries to define 'real' to Mr. Anderson, I thought it was pretty neat-o)
ASUS P5Q PRO (Old Gigabyte GA-P35-DS3L) - Pentium C2D E6750 2.66GHz - 2GB Corsair RAM - 160GB WD Caviar - PCP&C 750W PSU - Windows XP Pro x64 Edition
Samsung 2232BW 22" monitor
Razer DeathAdder mouse
Antec 900
One-Liners for Stressful Days
-- "I'm just working here until a good fast food job opens up."
-- "To err is human, to forgive is not company policy."