The idea of a false learning curve is essential in practically every walk of life, but is especially critical to students of A Course in Miracles. I've just posted a short discussion of the false learning curve on another blog, here, and you may wish to read it.
You can know if you are on a false learning curve or a genuine learning curve if your world changes or not.
"Change but your mind on what you want to see, And all the world must change accordingly."