@notbatman
If you're willing, I ask you to do a simple "test", an "experiment" if you may.
If it so happens that you went to the beach, time this exactly when the sun is setting.
Step 1: lie down, well, more likely in a "flanking" position and face where the sun is.
Step 2: wait until you can't see the sun in your current position.
Step 3: quickly stand up or stand in a chair.
Step 4: mindblown, surprised!, YOU CAN SEE THE GODDAMN SUN AGAIN!
Why you'd ask? Because it's a globe, and not flat.
You can search for a better explanation, but oh, I think "science" is a hoax for you, so no point in doing that.
So you're just going to ignore the fact the globe fails a distance to the horizon test with a wide margin of error? This is a test anybody with a super-zoom camera can perform (weather permitting i.e. no superior mirages on hot days) and confirm.
Here's one (of many) example of the globe failing a distance to the horizon test:
https://youtu.be/6hqzqmY9ny8As for your example [viewing the sunset twice] it completely disregards how optics works. Remember this is a hoax and you're being deceived by a group of highly educated magicians; the globe is their stage.
When you stand up it increases the observers angle of attack thus increasing the distance to the observers vanishing point (horizon line). An object, the sun in this case has its apparent size increased so that it's within the observers angular resolution limit
† thus can be observed [again].
Proof of this effect also known as foreshortening is as simple as checking that a pool cue is straight. When you hold the cue at the correct angle the entire length is visible but, its apparent size is compressed thus exaggerating any deformations.
"science"† reference:
Yanoff, Myron; Duker, Jay S. (2009). Ophthalmology 3rd Edition. MOSBY Elsevier. p. 54. ISBN 978-0444511416.
