That's a very over-the-top way to explain scales and chords to someone who's obviously a novice. Otherwise, he would have never asked that question in the first place. I appreciate your point however.the algebraic representation of music is: 2n, i.e. relationship, diatonic ,
melodic, scales move horizontally, in 2nd's
harmonic, chords move vertically, in thirds,
understanding both directions and their relationship is an absolute for bassists