When I was very young I remember learning the point values of the pieces. And then I ran into something very confusing.
I was able to learn king and rook vs king mates pretty easily, but king and 2 bishops was trickier--and bishop/knight took me much longer to learn.
This confused me. B+B/B+N = 6 points > R = 5 points. So I did not understand why the rook did things more quickly. Was it just me seeing things linearly, or was there something about how pieces interacted?
I have some ideas for how to express this simply, but nothing concrete. It seems like there should be such an explanation.