"For a long time people in the industry thought it was impossible to get people to eat more," Pollan says. "They called it ‘the fixed stomach’ and they lamented that, unlike in the shoe business where you could get people to keep buying more kinds of shoes, you couldn’t get people to eat more. Well, they’re to be congratulated. They solved that problem. Capitalism is very powerful. It solves problems. But it solves its own problems, not always our problems."