Fast paced music has a tendency to stimulate the mind. (Auditory stimulus) it makes you think, gets your creativiy flowing, and is generally exciting overall. \n\nIf you get the chance to see the movie "Better Living Through Circuitry" (available on dvd) You will see musician BT discuss this.  in how it relates to humans on a tribal level.\n\nYou are probably smarter than the average person. most people just can't roll with fast paced music. That's not to say they are dummies. but most people into faster modes of music do tend to be brighter than most.