from Birch Gold Group:

The U.S. dollar has been the world standard for currency since the end of World War II – but there are legitimate contenders that could take that title away. Whether it’s the relatively new conglomerate of economic powerhouses with a BRICS currency, the Chinese yuan or even digital currencies like bitcoin, there are many options. The world could choose to step away from the dollar as its value continues to sink and the instability of American politics puts a strain on the once unstoppable greenback.

History tells us it’s really only a matter of time. Global reserve currencies don’t last forever. Portugal filled the role back in the 1400s and that only lasted 80 years. After that, Spain took up the mantle and held it for an impressive 110 years, and no country has beat their record since. While it might seem unchanging for the generation or two living with a particular reserve currency, if you take a look at the entire span of human history, global reserve currency turnovers happen about once a century.