no paper money has ever survived in history, its a 100% failure rate.
usually when paper currencies failed gold took over, but today when trade is international its not practical to constantly move gold around.
bitcoin solves this problem, and that's why its the opportunity of a lifetime.
When did the US dollar completely fail? It's still here.
August 1971
Wasn't that when Nixon said: "We must stand up against the tirany called poverty!!. F00k the world, f00k gold price, Print dem billz and press dem coinz!!! We is all rich!!!"
After that they figured out what inflation was