To add to the list of central banks nearing default and/or losing money, the Bank of Canada is reporting being unprofitable for the first time ever:

As a reminder, central banks, whether operating legally or not, technically cannot default due to their capacity to create money out of thin air.

As another reminder, fiat currencies, including the dollar, are fallible, and last on average less than 3 decades. I refer you to the Peruvian Bull Thesis for an extended explanation.