There is no such thing as "bipolar personality". People should seriously refrain from using the term bipolar when they clearly don't have any understanding of the disorder. At least he didn't get it mixed with borderline I guess.
The kind of personality he describes does exist but it has little relation to bipolar disorder.
Given how he defined the term, I suspect he is using the word bipolar in its general meaning of having two states.
Bipolar is a bit of a misnomer as is, multi-polar is a better descriptive what what the disorder actually is. There are not two states, there are several overlapping, non-exclusive “states”. (For example: mania and depression are not exclusive.)
Eh, maybe it's coincidence, but I am Bipolar (type I) and I deeply relate to the personality type described by the article, including how the author relates ambition/boredom to mania/melancholia.
Interestingly enough, I also had a favorite professor in college who mentored and looked out for me to a certain extent, who was big into Lisp and Haskell, and who was quite acquainted with bipolar disorder himself due to other people in his life.
