The good news from our historical study of eight centuries of international financial crises is that, so far, they have all ended. And we confidently predict this one will end, too. We are just not quite so sure it will be nearly as soon as the chirpy forecasts coming from policymakers around the globe. The U.S. administration, for example, is now predicting that growth will renew in the latter part of this year and continue at a brisk pace of 4 percent for several years thereafter. Is this a fact-based forecast or wishful thinking?