The reason being rapid growth.
US/China economy ratio was 1.5 in 2019.
($21T/$14T)
Within just two years, this ratio has come down by 10%
In 2021, China rises to $16.6T, while US is at $22.6T, making the ratio just 1.35.
It wouldn't take more than 6-7 years for China to take over the primary...