Along the lines of the whole, we dont know if reptiles can really "think" and parrots having the minds of 5 year olds, and scientists making things up as they go because they just DONT know how the brain really works...

People should look up Synesthesia. There was an episode on the science channel that was pretty dang interesting!

I didnt think it was real, UNTIL i really listened to what people were saying about it in the show. I figured, how the heck is that possible.... theres no way... But its real, and these people arent making it up, One man even came up with a test to show that it is real! Interesting stuff, and just more reasons to prove that noone knows how the brain truly works