http://en.wikipedia.org/wiki/Synesthesia#People_with_synesthesia I found this facinating. It seems some people percieve individual symbols, characters, numbers, and letters as having their own color. Not only that, but it appears there can be any number of mixing of the senses. Perhaps this should be placed under "Credable mysteries". The list of famous people who claim to experience this phenonynon mainly include artists, musicians and general creative types. Richard Feinman claims to have seen equations in color that were in fact printed in black and white. Has anyone else experienced this? For thoes who program in modern software that changes the color of text when some function is entered correctly or a bracket is closed, I wouldn't be suprised if this behavior could be learned.