Political uncertainty around the world has more than doubled since the election of Trump. To find anything comparable we have to go way back, to the late 1920s for example, the times of the Great Depression. Or think of the United Kingdom in the 1970s, when the International Monetary Fund had to help the country out with a dramatic rescue operation. Up until the Greek crisis, that was the last time that the IMF was forced to intervene to such an extent in Europe.