Steve has a reality distortion field. When Hertzfeld looked puzzled, Tribble elaborated. In his presence, reality is malleable. He can convince anyone of practically anything. It wears off when he's not around, but it makes it hard to have realistic schedules.

Walter Isaacson Great Innovators e-book boxed set: Steve Jobs, Benjamin Franklin, Einstein (ed. Simon and Schuster, 2011) - ISBN: 9781451677607