The key sentence is: &quot;the [current] architecture wastes time and energy rediscovering facts that the compiler already knew.&quot;<p>If Apple does something here it&#x27;s going to be for the watch, not Macs. Pushing the envelope of efficiency for the watch is where it becomes worth it to make this kind of (otherwise insane) investment. It&#x27;s also a relatively simpler stack, so more feasible.