In that kind of world… what happens to gold?
Well, I can assume that gold will not depreciate to zero, because this metal has many real applications for humanity, which means there will be demand for this asset. Perhaps gold will cease to be used as a reserve asset in the future, but as a resource asset, like oil or timber, it will certainly be. And therefore, it will cost N-th amount of money.
It seems to me that they will not abandon gold so quickly because "gold" is in the hands of the powers that be and these guys will not allow gold to be replaced by a bitcoin so easily.