The architectural location that I was alluding to is some fat binary format itself, because this has the greatest impact on customer and user experience. How

The architectural location that I was alluding to is some fat binary format itself, because this has the greatest impact on customer and user experience. How you parcel out the supporting code between kernel and userland would flow from that invariant...if I were Linus for a day. Or, perhaps even better, adopt a small, architecture-neutral IR like LLVM-BC and a workstation of any architecture could choose to compile it just-in-time at launch, or at install time. Either way, the greatest tragedy here is small thinking. I would love to see Linux rise to the level where users don't need to know what an instruction-set architecture is.