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To prove that caffeine really does make you smarter, Mountain Dew scoured YouTube for wacky footage to be used in creating a series of video clips that gauge the sharpness of websurfers' observational skills. After watching each visually intensive clip (featuring effects by Spontaneous) at the "Stay Sharp" website, viewers are quizzed on the contents of said clip to determine how badly they need the concentration-enhancing properties of Mountain Dew's MDX energy drink.