In many years time we are going to look back on history and wonder why anyone ever accepted pieces of paper as money.
There has never before been a time in history where every country in the world have all simultaneously had fiat currencies as their medium of exchange or the "money".
We already know where all fiat currencies go and that is the zero because they are only backed by faith and confidence and as soon as confidence is lost it reverts to its intrinsic value of zero.
There are thousands of examples of this throughout history. Just a few, Weimar Germany, Chile, Argentina, Zimbabwe, Venezuela, Mexico, the Thai Baht fell through the floor in 1997, the Russian Ruble collapse in the 90's. Don't think it can happen to "first world currencies"? Greece was the first "first world country", its empire and currency collapsed, the USD collapsed 50% in 5 years leading to 1980, or what about the British Pound? It used to be called Pound Sterling because it was worth a pound of silver...not the case anymore, it lost close to 20% in 1 DAY on June 23, 2016! You cannot make this stuff up, this is history, this is fact!
However, each of those times the currencies that were hyperinflating had another currency to cling onto that at the time was holding its purchasing power. This time with ALL fiat currencies losing thier purchasing power together, it will be the single largest event in human history. Then what will people cling to??
What has been money for 5,000 years....something that holds its purchasing power and can never go to zero, gold and silver. A medium of exchange, a unit of account, durable, divisible, portable, fungible and a store of value! It ticks all the boxes of what you want in a money and it will be all the market wants when this soon plays out.