That was another thing colleagues and students noticed about Danny: how quickly he moved on from his enthusiasms, how easily he accepted failure. It was as if he expected it. But he wasn’t afraid of it. He’d try anything. He thought of himself as someone who enjoyed, more than most, changing his mind. “I get a sense of movement and discovery whenever I find a flaw in my thinking,” he said. His theory of himself dovetailed neatly with his moodiness. In his darker moods, he became fatalistic—and so wasn’t surprised or disturbed when he did fail. (He’d been proved right!) In his up moments he was
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