So we have a flat earth that can't be proven?
I'm sure that we can test this.
Nay, but the disk earth can be proven. Flat earth is somewhat a misnomer, for there is topography (mountains, hills, valleys, etc.)
Yea we can test this. Go to the biggest body of water you can find. If the horizon line is straight the earth is a disk. Or if you don't have access to such go outside to the clearest view you can get (no trees or buildings obfuscating your view.) Note how the horizon line is eye-level. Then get to as high a point as you can and note that the horizon is still eye level. That proves the earth is a disk.
Those are some rather simple tests you can do, which not only prove the earth is a disk, but prove that it is also trully scientific (can be observed and/or tested) as where the spherical model cannot be observed nor tested except with fake images or hoaxes or flawed experiments thus proving that not only is the spherical model impossible, but it is even not scientific.