(edited for brevity!) Thanks, I see now. It's a very helpful explanation! It helps to have context. Much appreciated.
ETA: I could veer off on a tangent (no worries, not going to) and wonder if some chapters get lots of recs. But it is a tangent and not germane to the topic and I'm not going to wonder about it. Any more. At all. Ever again.
__________________ "One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision." Bertrand Russell, The Triumph of Stupidity