Rich Cohen
Senior Member
I can easily relate to your diagram. I use these diagram when explaining language history.Here - I made something that should appeal to your educational background.
As a side note, I taught programming until about a year ago and when I'd use VENN diagrams for logic people's heads would just hit the desk. It amazes me that something that makes SO much sense just seemed to turn people off so quickly. Now I pretty much only see them in memes.