This puts a whole new spin on the phrase "color blind."

Tommy Edison is a man who's been blind since birth. He's made several YouTube videos about being blind, including this one where he attempts to guess the color of scented markers by sniffing them.

Edison, who has a lot of fun along the way, thinks he can get four out of nine. He shares his name with one of the greatest inventors of all-time, so maybe he can pull it off. Do you think you can do better? Put a blindfold on and see how easy (or hard) this game really is for yourself.