RT has the article Russia tops global gold buyers list as it turns away from US dollar.

Net gold purchases by central banks hit a six-year high in the first quarter of 2019, with Russia securing the leading position, as nations seek diversification of their assets and less dependence on the greenback.

This type of thing is an obvious attempt to dethrone the USA dollar as a world reserve currency. This dethroning is what Modern Money Theorists do not foresee in the near future as something that can happen to cause inflation in the USA. If Trump continues to weaponize the USA dollar with economic sanctions and tariffs, what MMT dismissed so easily before Trump could come to pass sooner than they could imagine.