A profile of a teen icon, after graduation. “‘She likes to argue and so do I,’ says [Kenneth] Lonergan, ‘and she’s really smart and so am I, so you end up having these discussions about interesting and broad-ranging topics. But then I find it very charming that she’ll go from mentioning a talk she gave in Australia at 16 to complaining about ‘Why does my dad care if I go to bed late?’ Or how annoying it is that her best friend is in Costa Rica and she can’t text her.'”