[not_exactly__]

Me think you grossly under-estimate the complexity of creating a facility that processes basic inputs, a few chemicals, and lots of optics/lights to make state of the art nanometer scale 3D features at enormous volume and very low defect rates.

[ajsnigrutin]

World cup in korea was in 2002... between then and now, many generations (sizes) of semicondctors have been 'invented' (..the method to produce them) and replaced with smaller ones.

https://en.wikipedia.org/wiki/Semiconductor_device_fabricati...

There is a table on the right, and there are rougly 2-3 years between 'generations' - so 2-3 years between starting a new production line of top-of-the-line flagship (eg.) cpus, to making a new production line for even newer, "smaller" (transitors) cpus, and the old line making other, cheaper ones.

I'm not saying that Johnny Sixpack can do it in his garage, but companies like Intel, AMD, samsung, etc. surely could do it in that timeframe, because they're already doing it now.

[ianai]

I think the problem may be best addressed by spinning up ASML alternatives and other critical singular fail points/capabilities. Some things like this do rise to a national/global security threat.