Seems to be the case here. Regardless of the author's educational background, kudos to them for continuing to dive deeper into the math. After a math degree a

Seems to be the case here. Regardless of the author's educational background, kudos to them for continuing to dive deeper into the math. After a math degree and three years of graduate school, I still run into blind spots almost every day, for topics that people across the hall from me would consider elementary.