 There's a real entrepreneurial aspect in every single chapter. You talk about inventing something, but also somebody seeing, in one way or another, a crack in the wall. And a lot of this is about the period where we lived in the three-network or four-network world, where people thought they knew something. And these folks thought, well, there's something missing. In every single case, there's an aha moment or the light bulb going on or the exclamation point in the word balloon.