Money: A Shared (but Valuable) Fiction Guest: Jacob Goldstein, author of “Money: The True Story of a Made-Up Thing” Forms of money change as the needs of people change, as civilizations change, as power changes. But Europeans thought Marco Polo was lying when he told them the Chinese used paper money. How the world has come to embrace the necessary fiction of money. Tulipomania Guest: Mike Dash, author, "Tulipomania: The Story of the World’s Most Coveted Flower and the Extraordinary Passions it Aroused" We explore the story of Holland’s 1637 tulip craze to understand the frenzy that feeds speculative bubbles.