The part that hit home for me was his description of the Prof's frustration with the speed at which he was implementing the enhancement to Klee and the fact that most grad students are not as smart as their advisors.

Most grad students are exhilarated to work with a brilliant researcher but it can crushing when one learns his or her own limitations.

Like the author says, probably 1 in 100 are the equal of their advisor and capable of becoming a professor at a comparable university.