“Let not man glory in this that he loveth his country, let him rather glory in this that he loveth his kind.”^[i]

A little over ninety years ago, in the fall of 1929, the U.S stock market crashed. The world at the time was far less interconnected than it is now, but ties of mutual dependence were already so tight that, like a string of pearls sliding down a drain, once one country went over the edge, the rest were doomed to follow. Over the next ten years, the nations of the world tried every remedy they could think of—raising tariffs on imported goods, creating welfare states, nationalizing industries, putting fascist dictators into power. None of it helped. The Great Depression lingered on. Why? Because the Great Depression was a global crisis—perhaps the first in human history—and the solutions put forward were, one and all, national solutions.