I actually like this, at least in some way it could lower the barrier for actually explaining what a function does. Though I don't see this working in an office environment

It's an island! Who needs a car on an island? At least on one as small as this one.

This is the only way really to move forward with ISA extensions.

Though, I think for this update we don't need to be too concerned. Since it changes the code in such an extensive way, compiler writers will be strongly incentivised to produce this duplicate path themselves. Instead of letting the burden of dispatching fall on the programmer like with AVX and friends