Oil system myths

Correct. But does the wing create the pressure differential? Or does the resulting change in air speed (flow) across the two differently shaped surfaces create the pressure differential? That’s the rediculous argument that is being had.
It is pushed up the straw by the atmospheric pressure pushing on the surface of the drink in the glass because you are creating a low pressure area by sucking on the straw. Just the same as when an engine creates a low pressure area at the carburetor and atmospheric pressure pushes air and fuel in. Just like an airplane wing creates a low pressure area on top of the wing and allows higher pressure under the wing to push the airplane up.