[YorkshireSeason]

> EU should have its own leading-edge chip foundry.

Yes, "should". But it is unclear that the EU has the organisational capability to pull it off. The last few decades have seen the EU loosing it's technological edge in more and more fields, the more the EU makes (funding) decisions in science and technology. Whether there is causation or just correlation is an interesting question, see [1] for a recent discussion.

> planned obsolescence of compilers

Which planned obsolescence? Intel is backwards compatible at least to the x86 from 1978 (?). And I think even back to the 8080. IBM mainframes might still be System/360 (1964) compatible, although I have not checked recently.

Given the RISC-V extensions and profiles tend to proliferate, and indeed that there is a competitive advantage in pushing your own extension, there is an often articulated fear that the RISC-V might fragment faster than those controlled by a single vendor.

[1] https://news.ycombinator.com/item?id=33971577