Not only does fiat money represent the value of each nation, but it also represents political power in countries. If fiat money were meaningless, then there would be no differentiation between currencies across countries. All have its reasons.
Exactly! It already came from your own words, money represents political power of countries and for me it is not good. Do you really like the concept of superior countries over the inferior countries? Because for me I hate it that much. In nature, people wants to dominate. Thus, people on top tend to discriminate or take advantage of the people below them. This will result to unfairness and injustice. Maybe you are saying this because you are living in a rich country but try to out your feet on the less fortunate shoes. What if you belong on the other side? I'm pretty sure you will demand as well. Everyone deserves a good quality of life. So even imposible, I wish that our world will have a universal currency because it might be the way for all of us, humans, to unite together and live in harmony
. (Who knows?)