My Kind of Type

A favorite joke of mine that I remember from the wall of my computer lab in college goes "There are 10 types of people in this world: those who understand binary, and those who don't." (Get it? "10" in binary is 2. Okay, moving on.) Of course, there are many more types of people than that. (It's just a joke.) There are also many more than two types of types . Blood type. Type A personality. Type 1…