»get someone who can explain it in sensible mechanical terms, not a pile of artsy waffle.«

When it comes to teaching and explaining, if one explains a concept using only "a pile of artsy waffle," those who learn easily by understanding the structures and mechanics can be left behind. If one explains only the structures and mechanics, those who learn by other types of visualization can be lost.

Effective teachers won't espouse an either-or approach, but will find a way to speak to the many different ways people hear and absorb facts and concepts.