Questions about AM6`s refresher

[apollolux]

Assuming that one starts at 5% AM on a scale of 1 to 100.

First pass, one moves from 5% to 25% Alpa, an amazing 5-fold increase
Second-pass, one moves from 25% to 50% Alpha, a good 2-fold increase
Third-pass, one moves from 50% to 75% Alpha, a decent 50% increase
Fourth-pass, one moves from 75% to 90% Alpha, a small 20% increase
Fifth-pass, one moves from 90% to 100% Alpha, a meagre 10% increase

That is a heck of a realization if that's true, that AM gains are essentially logarithmic in nature. Also, expanding on that a bit, if it's logarithmic then "100% Alpha" is asymptotic, a limit to approach rather than a given value at a given time, and therefore while it might be possible to be "99.9999...% Alpha" it's not a certainty to become "100% Alpha" except given "an unlimited amount of time."

I wonder if this applies to other subs than just AM?