OK, so I watched an interview with Daniel Shenton. He said that no one has given sufficient proof of the fact that the earth is round. Well, I'll prove it to you right here.
1. The distance around the equator (or what us spherical earthers say is the equator) is 40075.04 kilometers. If you don't believe it measure it yourself.
2. The distance around the coast of Antarctica is around 18,000 kilometers. If you don't believe it, measure it yourself.
Now, according to your theory, Antarctica is very close to the edge of the disk earth. The equator, (or where we say the equator is) is on the inside and forms a smaller circle around your disk shaped earth. If your theory was true, then the antarctic circle should have a circumference of more than twice the equator. This is not the case. In fact, the equator is twice as long as the antarctic coastline.
Therefore, your theory is false.