but while many people like me try and explore such ideas
How exactly you are exploring these ideas? Twiddling with your thumbs, looking at the ceiling and fantasizing? Can you kindly explore the fact that when the sun touches the horizon, a little lower than on first photo, then sunlight moves parallel with the ground. And then go figure out how can this happen on flat earth.
I explore these ideas in many ways. For many years now, I've been under the impression that the sun does not account for all the light we get. At night time we have sufficient light. It does not seem like a rock, said to be 240,000 miles away, said to be a quarter the size of the planet being shined upon, could reflect sufficient light. I know that the current scientific rationale is that the sun is so large and powerful and lifegiving, one can argue it can produce enough light that it gives us Moonlight too, but want to explore the idea that the moon creates its own light, after all rocks aren't very reflective. Researching Aguste Piccards work is only one way I have explored this.
Another way I have explored this, I figured if the moon is reflecting the suns light; both should be the same 'type' of light because they come from the same source, thus should have same or similar properties. I took two of the same sized, glasses of water and put one simple dollar store thermometer in each. By placing one glass under a patch of shadow, the other in light. I did temperature readings. The sun obviously heats the water and the shaded glass is the cooler of the two. Having not moved the glasses, and timing this when the moon was approximately in the same area of the sky, as the sun was, I did temperature readings again. My results (repeated by many others and verified). The moons light cools the water and the shaded becomes the warmer of the two.
This does not make rational sense. If the only difference between sunlight and moonlight is that with moonlight, the sunlight travels past the earth, hits the moon, bounces off of the moon, and then earth gets it. You would not expect that when the sun's light reflects of the moon, it would become a cold beam of light. This is not the only example of differences with the moons light and the suns light. If you like burning wood, you will notice that the moons light engulfs the flames, and makes them bigger; the sunlight seems to do the opposite, makes your fires duller and flames not as long.
I took another angle with exploring these ideas by re-reading the Bible. I constantly find scientific alternatives that much more rationally explain things that science has gotten wrong. The fossils of the earth, the seashells found on mountain tops, the layers in which rocks are separated, all that science tells you millions of years are evident. Could be all rationally explained by the story of the biblical flood. Science tells you dinosaurs died, science doesn't know what Lochness Monster is, what Mokele Mbembe is, science can tell you that a dragon is just make believe, but can't tell you why actual historical figures wrote about encounters with them, such as Beowulf. But if the writers of the Old Testament spoke about dinosaurs. Long before fossils were dugg up, and known about, then maybe dinosaurs lived among us, maybe they still do. Maybe Lochness, Mokele, and all the Dragons we’ve all heard about are simply dinosaurs...Behemoth was a Dinosaur. So no I don't just twiddle my thumbs, thinking that sunlight is separate from daylight, I'm reading the first chapter of Genesis tryna figure this one out.
You see I like to test my opinions, I mounted a poll to my wall outside that, when looking through it, you will always see Polaris. Whether it is March 21st, or if it's December 21st (not globally possible). Personally, I have stood across Lake Ontario and seen the Toronto skyline. It makes no difference if you can see the bottoms of the buildings or not, because the way I tested whether the Earth was curving away from me at such a great distance, is by using a string and a weight. I used this as a level to see a true lateral line. What i saw was the Toronto skyline, had the exact same ups and downs as my level was indicating i had. Anybody who thinks this would be impossible to tell from my distance must take into consideration, that the CN Tower (designed like a circular disk, set upon a pillar) would be a very strange and odd thing to see leaning away from you.
Anyways, I most kindly can explore the fact that when the sun touches the horizon, it appears to curve up to it, than directly into the ground. This can be figured out on the flat earth, by looking at the path of the sun. The sun makes a Circle. A circle can be broken into four motions; left-up, up-right, right-down, down-left. If you draw a circle, your pen will go from a downward left curve into an upward right curve. This is what is happening in the photo. That moment in which the sun set directly goes downward, is the moment in which the sun would appear to get further and change direction from our viewpoint, we don't see it change direction because at that point it has gone so far, it is past our field of vision. If you think you are looking at the sun going below the horizon then you must expect to see this at the beach.