NEW YORK – The US banking system is broken. That doesn’t portend more high-profile failures like Credit Suisse. The central banks will keep moribund institutions on life support. But the era of dollar-based reserves and floating exchange rates that began on August 15, 1971, when the US severed the link between the dollar and gold, is coming to an end. The pain will be transferred from the banks to the real economy, which will starve for credit. And the geopolitical consequences will be enormous. The seize-up of dollar credit will accelerate the shift to a multipolar reserve system, with advantage...