Sorry. Sunsets and sunrises by a horizon only work physically on a spherical planet.
What you've just described is a dogma.
No, it isn't, but it does ignore the ancient FE models.
This is simply a fact that for the sun to set it needs to go below Earth.
With a RE, this allows the sun to be above some other point.
But for a FE, it needs to set for everyone.
The only other option is to have magical bendy light.
You are yet to provide any explanation of how the sun could set on a FE.
Your parabola nonsense has been refuted repeatedly. It doesn't work. Not in the slightest.
Likewise, the sun travelling across the sky can't make it set.
When the sun sets we observe it appear to sink into Earth, with Earth blocking the view.
They have some elaborate spinning viewpoint which anyone looking at the moon from say a carousel knows is garbage. If one is spinning regardless how slow or fast, you eventually hit a point of turning away from and object. With a carousel, the ride itself is in the way and cannot see the moon from the backside of the carousel.
Just like what happens in reality.
If you keep your view fixed relative to Earth, you eventually turn away from the object.
For example, if you look to the east during a sunrise, and stay there the entire day, eventually you reach a point where you are looking away from the sun.
And during night it doesn't matter which way you look, Earth is blocking the view.
i.e the ride (Earth) itself is in the way and you cannot see the moon (sun) from the backside of the carousel (dark side of Earth).
That is what happens in reality. So thanks for showing that the rotating RE model works.
But let's see. You tell me that (1) light never fades out or degrades at any distance (2) that all EM wavelengths move at the speed of light, (3) that the sun is much bigger than Earth, (4) that Earth orbits the sun not the other way around, (5) that the rise and set of the sun are due to rotation.
No, we say light doesn't magically just die or break down. That it merely spreads out. This means it will travel forever unless it is absorbed, or scattered or reflected.
The light doesn't just reach a distance where it magically stops.
It also should appear to dominate the sky, and appear to be still with our viewpoint turning away from it.
Why?
Yet again you assert pure BS with no justification at all.
What you are claiming is that when looking away from an object, you should still magically see it. That makes no sense at all.
Instead, it looks like a small object sinking into the sky
Sinking into Earth, which is 100% consistent with the RE HC model.
And it cannot be round because of the way water and light behaves.
As above, the way light behaves shows it IS round.
The fact that water can obstruct the view to an object which is above the water when the observer is above the water means level water is curved.
In a basin
Water moves to Earth adopting a shape consistent with a RE.
but you cannot hold water in a convex object.
You mean you cannot stop the water trying to go to Earth?
Again, Earth is not a tiny ball sitting on top of a much larger ball.
You know this already and are blatantly lying to everyone to try to prop up your fantasy.
There is nothing about the behaviour of water or light which makes any problems for the RE model.
Meanwhile there are plenty for the FE model.