The thing of it is, he makes some really good points with this post. A lot of the things we learn in high school took mathematicians centuries to come to terms with. The concept of a complex or imaginary number, i = sqrt(-1), wasn’t really accepted until the 18th century (why do you think they’re called “imaginary numbers,” after all?). So don’t dispair if it takes you a little while to understand something in math class. Mathematicians of old died before they could come to terms with it!