The good news for Americans is that there is enormous inertia in the world trading and financial system. It took many decades and two world wars before the British pound lost its super-currency status.
美国人的好消息是，世界交易和金融体系存在巨大的惰性。历经几十年和两次世界大战英镑才失去其超级货币地位。现在美元还没有任何明显的继任者。