What is money? It’s a fiction.

Ira Glass

The terrific public radio show This American Life tackles this week what host Ira Glass calls “the most stoner question we’ve ever posed: ‘What Is Money?'” Along they way they enter the bowels of the Federal Reserve, learn why Brazil created a fake currency, and consider what giant stone coins on the bottom of the ocean teach us about the nature of money. They end up recognizing an unsettling truth: the value of money is based on trust, and is therefore “a fiction.”

You can download the podcast here, or listen to the one hour show here: