The system which underwrote decades of dollar dominance and kept a perpetual bid under USD assets met an untimely demise when the Saudis moved to bankrupt the US shale complex by deliberately suppressing oil prices.

The implications, we said, would be far-reaching.

For years, oil producing nations plowed their USD crude proceeds into USTs and other dollar assets in a virtuous loop both for the currency and for the nation that printed it. The "Great Accumulation" (as Deutsche Bank calls it) of USD FX reserves ended for good in early 2015 but no one noticed until China began to liquidate mountains of US paper in an attempt to manage a runaway devaluation effort.