The world is doomed to an endless cycle of bubble, financial crisis and currency collapse. Get used to it. At least, that is what the world’s central bankers – who gathered in all their wonky majesty last week for the Federal Reserve Bank of Kansas City’s annual conference in Jackson Hole, Wyoming – seem to expect.

All their discussion of the international financial system was marked by a fatalist acceptance of the status quo. Despite the success of unconventional monetary policy and recent big upgrades to financial regulation, we still have no way to tackle imbalances in the global economy, and that means new crises in the future.

Indeed, the problem is becoming worse. Since the collapse in 1971 of the old fixed exchange rate system of Bretton Woods, the world has become used to the “trilemma” of international finance: the impossibility of having free capital flows, fixed exchange rates and an independent monetary policy all at the same time. Most countries have plumped for control over their own monetary policy and a floating exchange rate.