Pretty much the only way a new computing substrate will be developed is through massive government funding. No company will spend billions of dollars and years of research on something that may or may not pan out in the end. It’s just too much risk coupled with lack of short term profit. Meanwhile, the US has convinced Chinese government that they need to start doing precisely this kind of long term investment into computing tech, and now we’re seeing a huge amount of innovation coming out of China in this domain.