A war to consume everything and everyone, a war to turn Gallifreyan society into a nightmare? That he could have predicted. But never in his wildest dreams could he ever imagine that it would be a loss. Or the madness that would come with it.

"And yet, your ego has only grown with time," he responds. "Congratulations. You learned one fact. How many centuries did it take you?"

Asked in the manner of a high professor, a voice he knows the Doctor used to hate.