Thanks, but I myself will be the judge of what is interesting. After all the speculative execution bugs I think it's pretty clear that Intel has reached a comp

Thanks, but I myself will be the judge of what is interesting. After all the speculative execution bugs I think it's pretty clear that Intel has reached a complexity threshold where it gets too difficult to reason about what the processor is actually doing. In that regard I think the "reduced" in RISC could enable us to write fast and safe programs. And we chuck out tons of legacy too, you can probably still run MS-DOS on the latest Intel chips. I'm not too worried about fragmentation – just look at any two x64 CPU's and they won't support all the same features, this is an annoying but mostly solved problem. And AMD does pretty well, while every board essentially needs a custom bootloader and a unique description of where all the hardware is.