CONDENSATION TRAILS BEHIND AIRPLANES ARE FLAT
DO CHEMTRAILS DEMONSTRATE THE EARTH'S FLATNESS?
The atmosurround does keep itself more linear than not. The way SpaceBusters decoded the trails of Chem and Con tells more of elasticity and uncontained skies than various others.
At 5:38, chems and con's are also discussed, albeit by assumption of (yep) a dome
Other than the previous notes, it's logical and deductive to conclude trails of chem and con to display the flatness of earth.