Everyone should appreciate a good challenge, from time to time. Great minds historically agree. T.S. Eliot once mused: If you aren’t in over your head, how do you know how tall you are? Molière famously proclaimed: The greater the obstacle, the more glory in overcoming it. And Emerson noted: Bad times have a scientific value. These are occasions a good learner wouldn’t miss. And it’s true that being challenged can help to keep you driven, focused, keep you sharp...but let’s a