 Tom Whitwell is a bit like Superman, mild-mannered, toiling away at his work, mostly hidden from the world. But once a year, he emerges with a list, a list of the 52 things he's learned that year. For instance, fondue was invented by the cheese industry. He has uncovered facts that will make you think twice, that may make you grimace or laugh. No politician has ever stood up and said, I've got a grand vision for performance reviews, and this is how we're going to change the world.