I like how it uses official soviet/ccp propaganda figures for GDP- this chart is pure fantasy.

For example, the soviet union GDP was smaller than California's GDP by the late 80s but no one realized it until the collapse. It never got close to the US GDP.

Also, China's GDP has been fake for years. All the recent growth is due to China maintaining the exchange rate while printing money like Zimbabwe. If China actually let their citizens freely trade the RMB, it would collapse to nothing overnight.

In any case, there is some sort of bizarre fakery going on with the numbers behind this chart. Maybe it's using PPP with adjustments or something.