I’m envisioning it as a running gag for the show. 5 episodes in, it’s shown that the clip is taken out to the garage for disposal where they have a huge stack of clips from previously bought bread. 2 seasons in, it’s shown in the background that a separate garbage collection vehicle runs up to the driveway and a specially built clip hauler is used to pick up the clips. Another season in, a bread bag clip recycling station is passed while the main characters are driving somewhere. Etc.

Koopa Troopa in a go-kart. I do get to keep the go-kart, right?

Oh it is explained, though, but not consistently. I have heard explanations of that the light refraction makes the sun look lower when it moves away, to a point where its visibility is hidden by the horizon, like a mirrage of the sky. Another explanation is that the surface of the earth isn’t flat, but bulges slightly, like a dome, making the sun disappear behind the dome every day. I’m sure there are more explanations as well.

The thing about flat earth theories is that they always have an answer for whatever you throw at them. They are so committed to their idea, that they will invent reasonings on the spot which become more and more convoluted - often in conflict with other parts of their theory.

Yeah, but you cannot convince me that watermellons are not red.