My good friend, screenwriter and author Mike Backes pointed this out to me and suggested this figure.

The AAA, which is the non-narrative default state, is common in kids who tell you about what they did today — “And then we went to the store, and then we saw a man, and then he said hello, and then we bought some ice cream, and then …”

At the other end of the spectrum is the learned academic whose thinking is so complex he ends up communicating on five separate narrative planes at once — “the classics are quite challenging despite their popularity, however some people would just as soon study poetry, yet I have a good friend who is fond of making his own haikus, but he’s not the only one who spends his spare time engaged in such activities, nevertheless …”

The real goal is right in the middle of the narrative spectrum.  People hit it at the prime of their lives.  That is when the brain is experienced enough, yet still sharp enough to construct clear, broadly understandable popular singular narratives.  That is when we have the best grasp of the ABT.

Such is the fate of humanity.