The problem, Gesell believed, was that money served two roles that often came into conflict: It was a way for people to store wealth, and it was the thing everybody needed to conduct business. The fact that money could store wealth meant its holders had a reason to cling to it, especially in crises like the one he saw in Argentina, when opportunities to safely put that money elsewhere looked grim. It was a typical story. When people got scared, they hoarded cash and brought business to a standstill. It led, Gesell said, to a situation of "poverty amid plenty."Gesell wanted to create a new kind of money — a money that would "rot like potatoes" and "rust like iron" so no one would want to hoard it, a money that was "an instrument of exchange and nothing else." And the crazy part is that he did create it. Through a series of pamphlets, articles and books, Gesell inspired a worldwide movement that introduced a completely new form of money. It's one of the most fascinating, and largely forgotten, stories in economic history.