* Predication (an absolutely critical component for a Vector ISA),
then the next logical advancement is to allow separate predication masks
to be applied to *both* the source *and* the destination, independently.
+ (*Readers familiar with Vector ISAs will recognise this as a back-to-back
+ `VGATHER-VSCATTER`*)
* Element-width overrides: most Scalar ISAs today are 64-bit only,
with primarily Load and Store being able to handle 8/16/32/64
and sometimes 128-bit (quad-word), where Vector ISAs need to