He was silent a moment. Turning the question around in his mind. Ah. So that was what had bothered him so much. "Well..." he began, slowly. "I can tell you that in my world it was not entirely avoided. I've met another Itachi who seems to have dealt with the issue by sort of... culling the clan, rather than doing away with it entirely."

A pause. "Your world, the one where the massacre did occur, seems to be the most common one."