shrews evolving into parsnips.

Now I've tweaked this diagram slightly.  I decided that three semantic layers were too many, and the mental model implied by the previous diagram was incorrect ("hardware" appeared both above and below the layer of interest.)




Also, expanding the domU boxes allows me to emphasize their role as 'container' (I don't fully encapsulate the domU because the entire point is that they're somewhat removed from the hardware.)

At a certain point I'll just fall of the deep end and start talking about reifying paradigms or somesuch. Until then, my art blather is barely comprehensible. Look grateful.