By creating a gold exchange based on physical delivery, China aims to become the global price-setter for gold. This establishes a parallel financial system, allowing international trade to be settled in yuan anchored to gold and directly challenging the dollar's dominance.

The dollar's role as a global payment medium may decline, but its reserve currency status remains secure. This is because its core function is a 'store of wealth,' guaranteed by the unparalleled depth and liquidity of the U.S. bond market. No other currency offers a comparable safe haven for emergency funds.

The US dollar reached its peak global dominance in the early 2000s. The world is now gradually shifting to a system where multiple currencies (like the euro and yuan) and neutral assets (like gold) share the role of reserve currency, marking a return to a more historically normal state.

A reserve currency must be globally available and acceptable. China fails on both counts. It won't allow the yuan to be truly mobile because that means losing control, and global partners won't accept it because China's legal system doesn't respect contract law, a vital component of trust in finance.

Despite political tensions, China's policy of managing its currency exchange rate compels it to intervene in markets, often buying hundreds of billions of dollars a month. This makes China an unintentional, yet massive, force reinforcing the US dollar's global role, not dismantling it.

Contrary to standard economic models, where a country's currency appreciates as its exports become more competitive, China's trade-weighted exchange rate has remained low. This prevents Chinese workers from seeing their international purchasing power increase and is a major source of friction with trading partners.

Despite economic rivalry, China relies on the US dollar as a primary safe asset. The depth of the US market allows China to deploy its vast capital reserves in a way few other markets can accommodate.

China deliberately maintains an undervalued renminbi to make its exports cheaper globally. This strategy props up its manufacturing-led growth model, even though it hinders economic rebalancing and reduces the purchasing power of its own citizens.

The decline of the US dollar won't result in a simple replacement by the Chinese Yuan. Instead, its core functions are fracturing: 'store of value' is shifting to gold and Bitcoin, while 'medium of exchange' is moving to a multi-polar system of local currencies like the rupee and yuan.