Flat-earthers already "changed" the physics of light propagation. I guess they would have no troubles bulls*tting their way out of gravity as well because none

Flat-earthers already "changed" the physics of light propagation. I guess they would have no troubles bulls*tting their way out of gravity as well because none of them has actually the math/physics/etc basics to prove themselves wrong (what's a lab anyway, a brainwashing tool of the lying elite?).