Historically it would be a step into circles we walked before, dollar of course used to be gold in exchange on demand not domestically but effectively it was that the world wide.   Still that legacy lives on despite not being true over 40 years, thats how we got right here.     A return to assets, commodities in reserve even crypto rather then FIAT seems possible however the hard liners will say BTC is FIAT hence we have a battle ahead and a long road.