I have heard that was not state sponsored but people memorizing schematics. I am not sure though. I am interested in learning more. China does innovate. But it

I have heard that was not state sponsored but people memorizing schematics. I am not sure though. I am interested in learning more. China does innovate. But it is a nation sponsoring technology stealing on a huge scale. I don't think USA ever did that. I am happy to be proved wrong.