Just an anecdote, but back in college, I had an algorithms professor who gave us a classifier problem like the square and triangle boundary problem. His English was poor and nobody understood the problem as he stated it. I got an okay score on it, but never understood it very well.

Anyway, it’s 40 years later and I just read this article and said, “Oh! Now I get it.” A little too late, for Dr. Hippe’s class.