Iam ambivalent after a lot of research. Both sides of the debate have anomalies....

The flat earthers state that the UN Flag is the true map of earth and that Antarctic is actually a large ice wall encircling the land and sea.

There appear to be no credible evidence of anyone ever circling the globe by air from North and South route.

Firing a rocket to escape high enough to hit the "DOME" is not really feasible ....

HOWEVER

Flat earthers why not try and circumnavigate Antarctica..

The flat earth narrative is that Captain Cook attempted this but travelled for months and over 42000 miles and didnt come back to the starting point.

Replicating this voyage is doable and provable to end the debate one way or another