![Planet Money show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/080/small/npr-planet-money.jpg)
Summary: Economists love to point out that the simplest products -- a pencil, say -- are the results of an incredibly complex system. On today's podcast, we talk to the economist Tim Harford, who once marveled at the beauty and complexity hidden in a cup of cappuccino. But now, he questions if that complexity is always good.