The earth is not flat. The earth is a sphere. Gravity is a powerful force, it holds us to the earth and it holds the solar system in its shape. Flat earth people don't understand geometry or Newtonian science. And that's their problem, their own lack of biblical knowledge and their own lack of common knowledge. They're ignorant and have not been studying. I've rarely encountered such a group of illiterate, unread people. They equivocate at every stage of the argument.