Is There Any Alternative of Fiat Currency in the World?

The gold reserves of china are less than o point three % of m two, the money supply of the of the country. You don't find an alternative of fiat currency that is widely available, free and open and transparent with one that has all the negatives, but is not transparent, and its not free. So maybe what this ends up doing is that other central banks might start to think about a physical gold it might be that other central Banks might start to thinking about crypto currencies. But it still so far fetched,. There is no central bank in the world that can go to day and purchase the amount of physical gold reserves that they need  in order to offset the reserves that