The class started at 6 a.m. on the other side of town. Most of the attendees were at the end of a shift. A bright bunch. We talked about communication issues and the discussion drifted into territory that was a mixture of sophisticated and basic.
The "sophisticated" is the sugar that makes the program more interesting while providing a cover for those who know they need the basics but don't want to admit it. [We've all been there!]
Basic knowledge is not inherent knowledge. It can be forgotten or discounted as easily, if not more easily, than the complex if only because we assume it to be ingrained.
That's why it deserves a periodic review, with or without a cloak.