Allan Wu would not be doing this without the backing of the CCP. As China and the west decouple, we are going to see a lot more 'Mainland Chinese CEOs' of western companies refuse orders from the western head and go 'rouge'. Good chance this will happen with a number of white-goods companies, cars (GM, Ford and maybe Tesla) and other manufacturing based companies. Place your stock market bets accordingly.
In China you are only supported by the CCP while you are useful, Elon is useful at the moment, but as soon as they can take Elon's stuff they will. Question: Is Elon smart enough to know that?
It farms out the data to the to 20 sort algos and runs the sorts in parallel. It uses the first one to complete the sort. Uses a bit of extra resource, but nothing beats ParrallecticSort.