I do not accept your explanations because they do not match what i see nor do they match your explanation of perspective. When I look at the sun through an appropriate piece of glass that protects my eyes from damage, the sun does not change size. If I place marks on that piece of glass indicating the diameter of the sun, it is always touches those marks regardless of the time of day. I watch the sun appear from the top down and disappear from the bottom up. That never changes. You explanation requires that the sun changes in size over the course of day AND it requires that the sun reaches a vanishing point or appears from the vanishing point. The sun doesn't do that. Your explanation fails and you really need to address that.
Why would you expect to feel motion of the Earth is rotating? We took a river cruise in Europe. We never felt that boat move yet when we looked at the window, it was obvious that the boat is moving. When you are moving with something, you don't feel the movement UNLESS something disturbs that motion, something like a pot hole or uneven rails or turbulence in the air or waves on a boat. Space has nothing in it so what would disturb the movement of the Earth as it travels through space? I noted that when we looked out the window of the boat, we could see that it is moving. When you look up in the sky at night and see the start change their position throughout the night you can see that the Earth is moving. Which brings up and interesting question for you to answer. If you are standing on the Earth watching the stars track across the sky, how do you definitively determine whether it is the Earth moving of the stars moving above the Earth?
You need to understand that whether the Earth is flat or spherical, you MUST look down to see the horizon. On a flat surface, if you look perfectly straight out, your line of sight is parallel to the surface of the Earth. This is an argument that only reveals the complete lack of understanding regarding simple geometry.
But this does not match what we see. In your statement above you have completely ignored that your explanation requires objects to get smaller and smaller as they approach the vanishing point. The moon never changes size. The sun never changes size. The stars never change their size. All of them go behind something, they do not get smaller and vanish. We see this every single day yet you cannot explain why your explanation does not match observations.
As smart as Tesla was, he was wrong regarding gravity. Einstein used mathematical models of physical phenomena to understand what was going on. That is how advanced physics is done. That is how engineering is done. Create a mathematical model to understand how things will react. Electromagnetism does not explain gravity. They are two completely different effects and each has a set of equations that explain how it works. What is interesting is your NEED to discredit gravity. Gravity totally disproves a flat Earth. Gravity explains why water and air remain on the surface of our planet. Gravity explains why people always stand vertically when standing on the Earth. Gravity (and lift) explain why birds and airplanes can fly easily from place to place. Gravity has bee understood for centuries yet you and your movement must discredit it to have any chance at making your hypothesis plausible. You attempt to use buoyancy to explain why things fall with absolutely no understanding is that a buoyant force acts to push objects up. What pulls down against a buoyant force?
If you want flat Earth to gain respectability then you must go through the same scientific process all other scientists have to follow. If you can write a paper that adequately explains why perspective explains why the sun disappears from the bottom up then you can be sure that other scientists will take notice and check your work. They will evaluate your math and experiments and will recreate them to see if they get the same results. If they do, you win. If your paper fails, well, back to the drawing board for you.
Our senses are designed to interact with the world around us to allow us to survive. We need to find food, to hunt and avoid predators. That impacted the way our eyes evolved. Our eyes have physical properties that determine what our field of view is and what we can see. Our senses evolved to deal with our immediate environment. The challenge comes when we start trying to deal with the scale of things. The Earth is far larger than can easily comprehend. The distance between us and the sun is even harder to get a handle on. You have fallen victim to the trap that what you see is all there can possible be. You have created a reality in your own mind that requires you to ignore centuries of science to believe.
You have not been able to effectively counter any argument against your position on this thread. Not one. You say you are only doing this to explorer the flat Earth position. At what point do realize that flat Earth does not work.