Kal Ripkin: I wonder if you can sort of tell something about a person by the blog posts they specifically keep. We're going to be rewarded, not simply because we can beat someone on a test, but because our whole posture is based on the possibility of better. That's the second piece that goes right next to the other skills. And people overlook it because our industrial system doesn't really reward us for measuring that stuff. If anything, i don't think we get rewarded because it's hard.