I imagine other lives—different, but maybe not that different from mine. Some people, when they sense that their lives have reached a stalemate, dynamite everything and start over. I admire those people: women who leave men, men who leave women, people who are able to detect the moment when the life they once chose to live has come to an end, despite possible future plans, despite the children they may have, despite next Christmas, the mortgage agreement they signed, the summer vacation and all the reservations made, the friends and colleagues whom they will have to explain things to.