I am not so concerned about the shape of the earth, whether or not the earth is flat or the earth is round as long as the earth is not hit by an asteroid that will cause extinction
Flat earth people will suggest that we won't get hit by a big asteroid. The worst will be a chunk of metal falling off the dome.
They will tell you that we should worry about the dome cracking and collapsing, so that the water outside of the dome comes crashing in and crushes and drowns every living thing.
You gotta love how much faith BADecker has in God's engineering abilities...