I'm dumb as a post about this stuff. Fortunately it seems I do not have to know HOW lift is created as long as I know that lift IS created - and how to manage it.

I am satisfied that it is differential pressure between the upper surface and lower surface of a wing - and the resulting down-deflecting of a mass of air - that results in the creation of lift. Newton seems to describe the process clearly.

What I have yet to come across is an explanation I can understand of why there is relatively lower pressure across the top of a wing. Maybe it actually is described in the calculus. Unfortunately I can barely balance my checking account so calculus is not accessible to me.