I can see the wheels turning in your head. They seem to be rolling this way:
- Earth is round. Therefore nobody could believe it is flat.
- Some people have argued against their own beliefs, toward a flat earth.
- Conclusion: Reaffirmation that Earth is round and nobody could doubt this.
I assure you, there are plenty of people who know the Earth is flat. Instead of merely reaffirming your own beliefs, I encourage you to take a few moments of your own time to question why you are so certain the Earth is round, and to review the literature proving the Earth is flat.