Hello Seth, that is an excellent topic and question. You certainly aroused my thoughts on the subject. I have never really thought of it that way but I think I remember reading something in one of my books now that you have mention it. I’ll see if I can find it today and get back to you.
It most definitely simplifies the subject concerning joinery . Since there are so many different types of joints it gets confusing after a while, so confusing that it’s overwhelms me to the point to where I get affixed on just two are three types and rarely try anything new. I’ll let you know what I find out and thanks for the post. Chris