I got a notification indicating this post was for me: I already thanked Vacant for trying to explain. Within that reply I stated that I was a bit (a lot?) out of my element with all this but his/her method of reasoning made some sense. I don't know what to say about your attempted explanations (like the graph with Acalc/Bcalc) as they didn't seem to explain my initial query, as far as I could understand. I think that can be all.
