"Humans can be monsterous enough to commit genocide. What of gods? It's not difficult to perceive the practically immortal, time and space-traveling Doctor as god-like. His superior vantage point and detachment allow him to make horrible calculations, sometimes sacrificing individuals for the greater good. He sees space-time in a way that's beyond human comprehension, understanding the sweep of history as from the point of view of a being that's outside both space and time, and yet who can intervene in and manipulate them. For all his genuine attachment to his various human (mortal) companions, he's ultimately a lonely being, a perpetual traveler, an observer to whom individual human and similar beings, with their limited life spans and understandings, must seem puny and ant-like."