If you are a pilot and you see the sun rise (below the curvature), then the whole flat earth theory is disproven. The sun is rising out of a curvature, thus seeing some of the sun, not the whole of it. Then you can see it move upwards, then it will be above you, then it will be behind you, going under the curvature.I'm no pilot, but do you mean this sort of thing?
Thoughts?
If you were to believe the video as presented, this proves the sun is below the plane, which must mean the earth is not flat, thus proving a curvature????At looks seems like very good evidence for curvature and the horizon not rising to eye level.
Basic Perspective
A fact of basic perspective is that the line of the horizon is always at eye level with the observer. This will help us understand how viewing distance works, in addition to the sinking ship effect.
Have you ever noticed that as you climb a mountain the line of the horizon seems to rise with you?
This is because the vanishing point is always at eye level with the observer. This is a very basic property of perspective. From a plane or a mountain, however high you ascend - the horizon will rise to your eye level. The next time you climb in altitude study the horizon closely and observe as it rises with your eye level.
The horizon will continue to rise with altitude, at eye level with the observer, until there is no more land to see.
From: The Flat Earth Wiki, Basic Perspective (https://theflatearthsociety.org/tiki/tiki-index.php?page=Basic+Perspective&highlight=horizon)