Things disappear bottom up as they leave the vision range of the whatever level of magnification you're at. That's just the limits of vision and perspective. I've seen this exact thing replicated by Flat Earthers, who then simply increase the magnification and bring the entire thing back into view. There's no indication regarding the level of magnification, distance of the object, the device used to film it, etc. Why was there no attempt whatsoever to increase the zoom level? Because if the device had the capability, then it would have brought the boat back. This is the most thoroughly debunked of all the globe earth "proofs" and still you ignorantly cling to it.
Again, no disrespect intended, as you know I value your knowledge and perspective, but this is patently false. Ask yourself: how do you know that these
non-Catholic Flat Earthers aren’t faking their videos for hits or simply to fool people?
BTW, there is a lake near me that is 5 miles wide and 21 miles long. if you look from the shore on the long side you can see the Sun “set” without seeing the land, but if you go out on a boat, the land becomes visible the further you go out. I’ve experienced this myself without a telescope nor binoculars. I’ve also seen Pikes Peek come into view from the top down driving East to West from the Kansas border to Colorado Springs.
People who believe in the flat Earth theory need to have a much better explanation for this common observation. Remember, just because the government and NASA lie does not necessarily mean that the Earth is not a globe (not snow globe).