Allen Baum wrote:

Here is my visual cheat sheet showing the 3 proposals

I've attached my own version, somewhat simplified. (I edited Allen's
file with LibreOffice on Linux. Hope it comes through clear for
everyone.)

Since the MML and MSL variables serve the same purpose, I've rearranged
the tables to keep those dimensions aligned. Also, I feel that the
question of whether a "security exception" or an ordinary access fault
is taken is an entirely separate debate, so I removed that distinction
from the tables. I've made some other simplifications and realignments
to aid comparison, as you'll see.

Regards,

- John Hauser