Could the dome bend lingt down?
What dome?
I though that was a common belief in FE's.
Could the dome bend light down?
Think about the physics required for that -- the light would need to travel down ~3000 miles, go beneath the cloud layer but not so far that it actually hits the ground, then arc back up to illuminate the underside of the clouds. Light isn't a boomerang.
Moreover, while the bottom of the cloud layer is illuminated after sunset, the top of the clouds aren't illuminated whatsoever. Take a flight just after sunset to confirm this for yourself.
TL;DR: The sun actually sets, disproving both the flat earth solar model and the infinite plane model.
So it sets.
From what I've seen, every FEer has a different model. When discussing the TFES model, someone pipes up with their different model to answer questions because no one model works for everything. Some have domes, others have aether that acts like a dome, some don't have domes at all. All don't have gravity, but some use UA, others denpressure. Some have a Sun 3000 mi up, others say it isn't. Sometimes light bends in extraordinary ways, sometimes it goes straight (even in the same model). It depends on what you are discussing which person/model is used. There is no FEF model - just a bunch of ad hoc explanations.
From what I have seen, and the longer you have been on this website, it seems that there is no agreement on just about anything concerning the so-called "flat earth." It seems everyone has his own "idea" about all the things you mentioned.
If something really doesn't exist it seems if you have a vivid enough imagination, you can think up a lot of things. Like L.Frank Baum did in "The Wizard of Oz." If you don't take any FE seriously it can be very entertaining. See my signature line. iWitness, sandokhan, sceptimatic and a few others seem to be the flat earth experts but from I have seen I don't think you will find much mutual agreement with them on most flat earth "ideas." They say they are "theories" but I don't think they qualify to be in that category.
Sunset, the horizon and the distance to it......and a few other things (LOL)....seem to be the greatest of the flat earth fallacies.
As for astronomy, I have suggested time after time that flat earthers should visit an astronomical observatory......But I have yet to hear that any have ever taken me up on my invitation. Too many demons, satanists, satan believers, liars, etc. there I guess for a flat earth believer.