This post makes no sense. The physics problems that arise at smaller feature size (leakage, DFM issues, electro migration, IR drop, etc.) effect all instruction set architectures equally. The electrons and holes don’t care if you are RISC or CISC. Maxwell’s equations still apply. Having designed powerpc, sparc, mips, and AMD64 cpus, I’ve not once found that one architecture works at a process node but another doesn’t. The only differences are yield. Some arch’s require more transistors than other.