Merchants of Cool

The Frontline video was in tune to the lifestyles of teens and the marketing campagnes. I have to agree that parts of this video act superior to the society they are also apart of. I did think the video was correct about the "mook" and the "midriff". I can easily see people in my own high school who are perfect examples of the "mook" and the "midriff". The "mook" being the stupid, girl crazy guy and the "midriff" being a girl who is obsessed with her looks and shows a lot of skin. I liked the observation made that cool is always changing. Whats cool now is not cool later, so what is the deffinition of cool? Is there any way to tell what the next cool will be?