Every step you take, a million doors open in front of you like poppies; your next step closes them, and another million bloom. You get on a train, you pick up a lamp, you speak, you don’t. What decides why one thing gets picked to be the way it will be? Accident? Fate? Some weakness in ourselves? Forget your harps, your tin-foil angels—the only heaven worth having would be the heaven of answers.