 One of the gaps that I thought was really big, which was thinking about these companies that revolutionized transportation, Delta Airlines in some ways, Coca-Cola, there's hardly a product that you can think of that has that kind of ubiquitous reach. How did they do it? And what was it about the South that explains why Coke was able to be such a global brand? How could Walmart start in Bentonville, Arkansas, a town of a few thousand people, and become the largest corporation in the world?