The dollar just hit a 20 year high. Did you even know that? Tell everyone why the dollar is so widely used. If you can not then you have no credibility.
Because it is the best house in a bad neighborhood in the West. The US used to sell its military protection to countries to keep them on the petro dollar. We just sent a billion in weapons to Nigeria to keep them “safe.” Now that we are seizing assets and throwing countries out of the banking system some of the good faith and trust has been lost. Japanese Yen is in free fall because they have been printing for decades and cannot change. Compared to Japan the US is New England penny pincher. The US dollar will continue to be used until there is a viable alternative. BRIC countries seem to think they can provide a viable alternative now.