On the evening of October 6, Argentina’s President Javier Milei performed an arena rock show, thrashing out nine songs in front of 15,000 fans in Buenos Aires to launch his new book, The Construction of a Miracle. “I want to thank The Forces of Heaven,” roared the libertarian economist, who was once in a Rolling Stones tribute band. “Because victory in battle doesn’t depend on the number of soldiers, but on the forces that come from heaven.” At exactly the same moment, Milei’s economy minister Luis Caputo was in Washington, appealing for help — not from heaven, but from the...