Five minutes of glory can be excerpted from even the most ordinary life. Such is the logic of everyman highlight reels. Given hours of aimless footage — let’s call that life itself — marketing services around the country now produce minifilms in which, to the tune of “Dream On” or “Whoomp! (There It Is),” average athletes complete every touchdown pass, execute every pancake block, turn crowds misty-eyed with adoration and generally trounce everyone around them. These impressive videos — mostly commissioned for athletes, but also for aspiring actors, dancers, musicians and other performers — have become a standard component of college applications. Their ubiquity suggests the operating assumption of American teenagers, who, having been born to camcorders and graduated to camera phones, have become the ultimate multimedia curators, fanatical archivists and tireless autobiographers. If an experience is not uploadable to MySpace, it did not happen.