This will be a quick post, as I am finishing up a Commonwealth conference. As usual, it has been a wonderful chance to see old friends, make new ones, and have a great time in a beautiful place. It was as I expected, given the great people—and even better meeting planners—who make Commonwealth so special. In this case, at least, my expectations were well-founded and have been fully met. But today I want to talk about expectations in a more general way.