Interesting read, but if I was to critique the article I would reject the notion that the US is not a technical innovator in semis nor does it have any skilled manpower left. Take away the support and R&D that Lam, AMAT, KLA, and Cymer give to SK, TSMC, and Samsung and their node development would grind to a halt. Without the vendors we would all be rubbing sticks together and bashing rocks. It is also the indisputable reality that the lion's share of tool research and development is happening in the US, JP, and the EU rather than the ROK or the ROC.