On season 1 Peter faced Sylar several times. If Peter's power is to "copy" other Heroes powers why hasn't he copied Sylar's? And I am talking about Sylar's original power which is "to know how things work." Why does he have to learn how to use his powers when he should already know due to the encounters with Sylar? Even on Season 1 when Sylar and Peter faced on Suresh apartment Sylar said that he would like to see how Peter's power work while he had Peter on the wall. That to me was Sylar using his original power and Peter not "coping it"