I’ve been rereading ACOK and I’m at the point in Arya’s POV where she gets three complementary hits from Jaqen. Now I realize that at this point Arya hasn’t met Tywin and doesn't consider his culpability for her and other people’s suffering in Harrenhal. But after reading this chapter again with the benefit of hindsight, I realize that had Arya simply whacked Tywin at Harrenhal when she had the chance, the course of the war would have changed completely. Robb would have survived, he and th