Overprinting is called hyperinflation. People lose trust in the currency because they are worthless. It has happened before. https://en.wikipedia.org/wiki/Hyper

Overprinting is called hyperinflation. People lose trust in the currency because they are worthless. It has happened before. https://en.wikipedia.org/wiki/Hyperinflation https://en.wikipedia.org/wiki/Hyperinflation