[varmintman]

I wish I had gone to college then maybe I could understand what this article is all about......

I was a math major in school and in this particular case, you aren't missing much.

[Prolixus]

John Derbyshire touches on Category Theory in his excellent book Unknown Quantity. I've read the chapter and, though it's written for the layman :), I don't think I'll ever understand the subject. My kudos to anyone who can!