The governor of the Bank of England just touted digital currencies as a possible replacement for the U.S. dollar as the world’s reserve currency. Such a digital asset, whether backed by central banks or even Facebook’s Libra stablecoin, would “dampen the domineering influence of the US dollar on global trade,” Mark Carney said in a speech on August 23 to the 2019 Economic Policy Symposium in Jackson Hole, Wyo.