Our 5-year old, Zoë, is very bad at losing at games. Today she wept copiously, following a painful defeat in tic-tac-toe. (In her defense, she was exhausted and feeling frazzled for independent reasons. But really: one should chill, when it comes to this game.) Zoë: ‘It’s not FAAAAIIRRR!’ Daddy [against better judgment]: ‘Why isn’t it fair?’ Zoë: ‘Because I tried my very best, but I still didn’t have fun.’ There is something to that, as a theory of justice.