@KitsuVonKraft
Well, it depends on the fundamental laws and forces.
That is to say, if their world has higher dimensions or special forces that ours do not, then the distortion would show itself in a different way in our world.
Going back to the sheet of paper.
If we take the sheet and fold it in half, then one side would be touching itself (that is, in the inner part of the folder)
Now, to us, because we have 3 dimensions, we know that the sheet is just folded.
But to the 2D stick figure, depending on how this change expresses itself, it could be like the world got torn into two, then then those two sides merged themselves.
Two buildings on opposite ends of the world have suddenly merged into one, single weird mess.
Then if we unfolded the sheet, everything would un-merge and fix itself again.
That said in terms of the story, we haven't heard much from the human world. For all we know something might be happening.