What would happen if Europe were to be cut off from American supply of GPUs?
As far as I know, Europe has control over one company that is involved in the supply chain to build AI hardware: ASML. They build the lithography equipment which is needed to produce the wafers which are needed to produce the processors.
Are there companies around the world who can/could build this type of lithography equipment?
If Europe loses this piece of control over the AI supply chain, would Europe then be at the mercy of the USA for AI hardware supply? How long would it take for Europe to produce their own GPUs?
On top of that European governments got very good at banning and regulating things, not so much at innovating or creating a good climate for innovators and entrepreneurs.
However, given the current environment, it's impossible for this to happen, because the EU (which is largely equivalent with Europe in this context) is obsessed with regulating everything to death instead of creating opportunities for future prosperity.
They're literally doing the exact opposite of what is needed.
What would happen if America would be cut off of EU supply of ASML machines?
US companies will want to have consumers and Europe has them, so they would like to offer their services in the EU.
AI hardware is also produced in China. Americans don't want to talk about it, but Huawei has good inference hardware and software.