You shine more brighter thinking everyone can already see the complete obvious... When your just draining your energy away that will (sooner rather then later) exhaust ALL the light in you that's essentially shining brighter then anyone else! Potentially forcing you too see reason of what the obvious already had been giving away since the very moment you started "showing off"!
PS... It is what's called when you shove everyone else out...except your very own "pretentious" ego!