since paper money is paper and has now real value paper money is SHIT in less than some years the government will come forth and say your money is no longer useful, and gold is too scarce for legal tender. We have no choice other than to be an asset economy where "goods" are payment and trade, you know like trading protien powder for some good food at the grocery store as a form of purchasing

. yes kinda difficult but i dont see any legal tender thats available enough unless its silver or copper to go around. maybe there is another gem or metal im missing
i beleive whoever can pin point the right gem or element will be a rich man, but i dont think its gonna be gold