Just as scientists can analyze the atmosphere of planets and painted surfaces with reflected light from distant, unreachable objects in space, why is there no way to analyze the chem trail coming directly out of a plane a few miles away?
There was a mysterious object floating in our solar system that they pin-pointed as a second stage booster rocket from the 60's.
They got that exact analysis from a telescope. The chemical composition of the surface: paint.
Why no smoking gun like that from a plane's butt?
Please seat yourself.
I like the very things you hate.