^^^ Dubay (the author of that quote) is correct and you're an complete idiot, here's why:
The horizon (apparent) is created by the angular size limit of the eye or camera, this physical limit is the result of the aperture size and wavelength(s) of light. As objects recede into the distance they get smaller to a vanishing point (the size limit), the distance to this point is defined by the eye. The result of all objects in the field of view converging to a point is a vanishing line a.k.a. the horizon line.
The globe model's geometric horizon (physical) is complete nonsense and doesn't exist, this can be confirmed by the individual with modern optics such as the Nikon P900. The apparent horizon is an established part of science and has been a known optical effect for a long time.
Reference:
Yanoff, Myron; Duker, Jay S. (2009). Ophthalmology 3rd Edition. MOSBY Elsevier. ISBN 978-0444511416.
Documentation:
Nikon P900 Distance to the Horizon Test --
https://youtu.be/U7GIW0vJcicYou are quite good at directing us away from what is being talked about. But here is the answer.
Let's say that your eye is 6 feet above the ground. And let's say it is focused perfectly parallel to the ground. On a flat earth, all you have to do is follow the line of sight. Walk, if you must. Walk for miles and miles, perfectly parallel to the FE, in the line of sight. Walk for another couple of days. Walk 10,000 miles on the FE, always keeping to the eye height, which the eye is using... the 6 feet.
Let's say you only walked to the horizon that the eye sees. The eye is simply too weak and unable to distinguish you from other objects on the horizon... we're talking FE here. But the straight line that the eye is following is still 6 feet above the FE ground.
If your focus is on the fact that the eye has its limits, great. But the horizon never rises to meet the eye no matter where the horizon is... except in one place. Where is the one place that the horizon rises to meet the eye on a FE? In the mind of the observer. Camera, the same.
I don't really want to tell you what to do or say. But why not say what is factual? Your FE is a lie, but worse than that, the ways you try to explain it are a complete sham and deception. Why? Because everything you say doesn't have anything to do with FE or GE. You simply play on the standard thinking of people in ways that make them THINK that you are talking about the shape of the earth.