This is the same China that graduates 1.4 million engineers every year - this compared to the United States' 200,000 or so.
Oh and let's not forget the fact that many of those engineers will actually find their way into industrial/engineering jobs after finishing university, due to China's enormous manufacturing base - as opposed to, say, joining an investment bank or tech publication, as in the case of those engineers graduating in Western service-based economies.
Even taking Gelsigner's 10 year figure at face value, I wouldn't be surprised if China was able to achieve parity with the West by 2030, at least.