* Considering the [[spoiler:''Truman Show'']] nature of the Aigans' world, shouldn't one of them eventually have [[spoiler:found the edge by traveling too far? Even if it's all fenced off and forbidden, it seems much more likely that one of these people would have hit the wall before they hit the ceiling.]]
** If we take it that [[spoiler:the entire world takes place inside a globe then they would have been able to circumnavigate the inside of the world. So long as a blue sky and stars remain above them they it would have looked exactly the same as living on the outside.]]
* What was the [[spoiler: structure at the apparent centre of the earth that they landed on. It was kind of a Dues Ex Machina that saved them out of nowhere and was never explained. Was it what caused the invertion in the first place?]]
** It was (partially) explained earlier in the film, during Age/Eiji's class - that it was [[spoiler: the result of an experiment dealing with gravity [[GoneHorriblyRight that caused the inversion effect]]]]. Which is why the ones responsible were called "sinners" and were said to have been punished by being swallowed up by the sky.
** As for the [[spoiler: celing structure Patema and Age/Eiji landed on]], it was likely the underside of a long forgotten facility [[spoiler: on the surface world]]. Similar to the service duct that was directly below the Agian research center. It'd gone unused for so long that the Agians had forgotten it was even there, which is how Porta and Age/Eiji were able to sneak in.
** As for the
* Where the heck '''ARE''' they? Because the [[spoiler: AlienSky]] in the final scene makes it pretty clear that they're [[spoiler: not on Earth]].
** That's an exaggeration, the [[spoiler:sky doesn't look "alien" as in "not from this planet", but alien as in "[[RealLife not ours]]". Having an ring of space junk or moon rocks around the moon doesn't necessarily mean that it's not planet Earth they're on.]]
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