Nonsense. A thesis based on a basic ignorance of the nature of money/currency. A medium of exchange must have its value tightly controlled within a narrow window of exchange value. No commodity, be it gold or oil or any other you can mention meets this test without price controls, which can not be imposed on a global economy by a single national economy. There are currently no competitors in the currency market, the Euro is losing power and the EU is on shaky ground. China is an illegitimate state without reliable rule of law and with no viable path to rule of law under current authoritarian/totalitarian rule. A global currency can not win long term trust without the backing of a legitimate government with a democratic self rule backed legal system. Crypto currencies are a speculative joke; where’s the competition for the dollar going to come from?