Because it has travelled far enough away from the viewer’s perspective horizon to appear as if it has gone away. This is why time zones exist, it represents the sun’s Zenith in the area. Look at the time zone change between Alaska and Russia of 3 hours, it makes no sense on a globe model. If the sun were to set and you sent up a rocket you would see it again. It does not disappear below a curve. It just travels out of view.
Nonsense. Delusional, obvious, nonsense.
It’s not travelling away, it is VISIBLY setting below the horizon. You can watch it go slowly down over the horizon, bit by bit, not getting further away, but descending below the plane.
It’s not getting smaller and vanishing to some made-up vanishing point, it is descending, in full view, below the plane.
And learn a thing or two about the subjects to rant about. Russia has been playing politics with its time zones for a century, changing them for political reasons. China as well. Just look at a map of time zones, it is (once again) utterly obvious.
Look into how the human eye works and you will understand horizon. Keep researching, information is knowledge.
I have a pretty good understanding of the human eye, thanks. And I also see with my own eyes. The sun set below the horizon and rise up from it every single day. Visibly dropping below the horizon. The proof the earth is not flat happens twice a day, every day.
This is why I genuinely believe flat earthers are either just trolling for attention, or are mentally retarded.
Which one are you?