If people want, math and physics, check out Dr. John D.
https://www.cathinfo.com/fighting-errors-in-the-modern-world/dr-john-d-destroys-globe-earth/Very few responses. This man is less popular than the other youtubers because, quite frankly, his channel is extremely dry. And it's very dry because he does all the math and runs the numbers, so his laser test video goes over an hour, and your average viewer doesn't have the patience for it.
I noticed that there were zero glober refutations.
He destroys refraction by conducting a two-way laser test. He took all the temperature and humidity readings, and recorded all the numbers with precision. Really the only comeback that globers have against all the "see too far" experiments is the gratuitous mention of the magic word "refraction". It's never proven or demonstrated. In order for light to follow exactly the cuvature of the globe, there would have to be an increasing density gradient along the path of the laser, as Dr. John D points out. But if there's an increasing density gradient, then in the reverse direction, there would be a decreasing density gradient. Consequently, the laser could not work in both directions at the same time at those distances. This puts the nail in the coffin of the "refraction" magic.
He also affirms my #2 reason why the current cosmology is bogus. Gravity is simply not strong enough to explain why the immense vacuum of space, as modern science conceives of it, would not rip the atmosphere off the planet. It's simply not possible that our atmosphere could exist adjacent to a nearly-perfect vacuum.