In a world where we are dealing with someone who is not from our country, we will always use USD as the benchmarket to calculate the value. I will switch that dollar to my fiat, and the other person will switch that dollar to theirs, and they will all calculate and we will see if it is a good deal or not that way.
I can't offer my fiat, they would not want it, and they won't offer their fiat because I will not take it. This is the reason why bitcoin ends up with being so much more important. Because it can replace dollar.
This is the key advantage of the DL for EVERYONE-a single unit of value transfer that, while subject to inflation, is not affected by it in the same way as all other currencies in the world.
By the way-what’s stopping other countries from making payments to each other in their local currencies? Think about it! The answer is extremely simple-it’s complicated and… NOT PROFITABLE!!! On the global market, it’s more convenient and profitable to buy with dollars. If a country’s central bank has a "mix" of 150 currencies, how will it buy goods with dollars? That’s right, by selling local currencies for dollars, incurring a loss on every transaction.
Will cryptocurrency change this situation? Probably, but for that to happen, the world’s largest economies would need to start accepting it...