With a tip of the hat to my friend Flavio that pointed this out to me.
I do not agree 100% with the videomaker, but we are clearly on the same page.

https://www.youtube.com/watch?v=1lTcgSzf0AQ&fbclid=IwAR19OB4QQ9nKRLASHvxay3EzkQl1SO9M84JrVIe-zTv2vvY9OdsFLqMUTaU