US bonds or gold?

The question going forward is, what currency can replace the US dollar as the world reserve currency? My personal preference would be gold as gold is neutral, it's not one nation's liability, it's finite in supply and immortal. Some say the gold market is too small for big money to move into. I would say the price of gold would take care of that. And what's the alternative truly? SDRs can't do it, but I will write more about SDRs in the future.

Today I came across an interesting chart. Below, you can see the amount of US bonds held abroad sold, versus the amount of gold purchased by central banks from 2013 till present.

...It's nearly equal.

Courtesy Luke Gromen (Twitter https://twitter.com/LukeGromen)