I think that's becoming gold. That's why we're seeing the price action in it over the last few years. In a world with little trust, only gold is trusted. Even the Netherlands is repatriating a portion of their gold reserves from New York to London.

Hopefully not. We've lived that movie already with currencies tied to gold. It significantly slowed down past WW1 reconstruction, and is in general makes it very hard to adjust the money supply to enable economic recovery.

The ideal would be something like the International clearing currency proposed by Keynes durin Bretton Woods (he was overruled in favor of the dollar as reserve currency since America had all the power at the time).

Here's an Op Ed from Greece's past finance minister in favor of this scheme: https://www.weforum.org/stories/economic-growth/yanis-varouf...