If the earth is flat, and sunrises/sets can still occur without the sun ever actually crossing the plane of the earth, the only possible explanation is "bendy light." Coincidentally, this bendy light would also make the earth look curved, and cause the "sinking ship" effect.
One important difference, however, is that the on flat earth the surface would appear as a convex parabolic curve, while on round earth, the curvature would be globular. If this can be measured, then it would prove one of the theories.
LMAO,
I can prove this wrong via laser, or even a basic set of mirrors at equal distance, level, and angle.. You clearly have no idea how light refracts, or bends.. And regardless of this, it still would epically fail to address the problem I provided you lol.. Apparently there is a reading comprehension problem as to why bending light will not magically fix the problem lol.. To some observers, the flash light would be at the far east horizon facing an observer with it's full 360 degree circular shape (O), while it also be facing the far west horizon with a full 360 degree circular shape (O), and these two observers alone completely falsify your FE argument, and Sun disk spotlight argument.. When we add the observer directly under the Sun to the other stated observers the Sun again has the full 360 degree circle Shape (O).. Hence this is now 3 sides of a Circular disk you claim to be a Flat spotlight disk shining down on Earth.. But it gets worse, I can add 2 more points of reference of two more observers at the furthest points north and south relative to the other 3 observers and yet again establish a 360 degree circle Shape (O).. No amount of "light bending" is going to fix this kiddo.. That's 5 sides (below, east, west, north, and south) with 360 degree full view all at the same time. This makes the flat Sun Disk spotlight a laughable joke because
the only possible observer to see a perfect 360 disk would be the person directly underneath the spot light LOL.. So going in order north south east, west, and point of view directly under the sun, the Sun's shapes would look like this: ---, ---, ---, ---, O with the (O) disk shape representing high noon only according to a flat earth, or according to the physics, geometry, and angular perception of a flat disk spotlight moving along a flat plane..
And bending light isn't going to fix this no matter if you bend the light even a full 90 degrees lol.. If you think I'm wrong..
Go out at night and hang a Flashlight from a tree branch and walk away from it LOL.. FE fails entirely by a merely simple flashlight experiment that anyone perform in their own back yard. No matter how far you get from it, your bendy light nonsense is going to epically fail. Your flashlight from the tree isn't going to magically follow your eyes and start shining horizontally in your direction much less all other directions LOL.. So your friend on the West side isn't going to see the (O) facing him either.. The only observer that's going to see the (O) will be the one directly under the the flashlight lol..
All I had to do was add 3 or more points of reference, add the angles, note the shape of the sun and we thus have FE failure on an Epic level ;P
And it gets worse as you continue to add more points of references that deal with the angle in which the sun is in the sky from both the horizon and the individuals point of perspective.. If you collect all the data from around the world in regards to who can see the Sun at any given moment, the data shows the impossibility of a flat disk spot light sun, and a flat Earth due to the angles, and the math associated from all points of reference.. The math alone will show the curvature of the Earth according to all the points of reference in accordance to the suns position and shape within the sky, and horizons..
This is why FE tries to diagram a single persons perspective or or point of reference when using diagrams such as the above.. And notice the Bendy light guy doesn't give the position of the sun LOL and then calculate how light bends, and refracts from it
Seriously, we are this stupid, and we know why the Earth isn't flat LOL.