A lot of commenters here are from the West, and the atmosphere between the PRC and the West (particularly the US) at the moment is quite a bit more acrimonious and competitive than it has been historically. It makes sense that people would leap first to essentially "They aren't as smart as us"/"They're less honest than us"/"They're less trustworthy than us" etc. The simplest and most likely correct explanation is that the PRC has a lot more STEM students in absolute terms and even proportionately, more and very well funded labs with very ambitious leadership and "national spirit"/"something to prove" style thinking, and that particularly in chemistry/materials science the PRC is dominant, with a huge proportion of all the highest quality chemistry focused universities, academies etc.
I, too, found it fascinating how every initial reply dodged giving the Chinese credit. Instead, all of them tried every way to paint their publications in a negative light.
Surely, most tech workers have encountered working with highly competent technical coworkers from China? Or that Chinese students in America tend to perform well above average academically?
Why should anyone be surprised that China performs exceedingly well in sciences?
But they have also encountered IP theft and Chinese nationals assaulting local and foreign nationals in countries they are lucky and fortunate to have the right to study in, over protests: https://www.scmp.com/news/asia/australasia/article/3019888/h...
Now I hate that I have to say this (because it should be a given), but _obviously_ this does not apply across the board, but when people experience shocking behaviour like this you can see why they might hold grudges or biases, even when that's wrong to do.
That aside, China & the US (of which are are a lot of Americans on this site) seem to have held a grudge for quite a long time now, on both sides. Which is a shame, because we're all human at the end of the day and especially science should recognise that stupid tribal human concepts like nationalities and borders are meaningless to the big picture.
