To keep it at five year old level. It’s because your friend (East China Island) spent the last 40 years learning how to do it and do it really really good. Why them because they really really wanted to and no one else really really wanted to.
These technological engineering industries are a massive undertaking that require a public private collaboration and decades of development with no guarantee of success. Also it’s not just machines it’s human capital to operate the machines and the bureaucracy to manage those people and complex supply and logistic chains. They didn’t just figure out how to make 5 nanometer processors over night it was decades of slow gradual progress with a few big jumps here and there.
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