The flaws like those in the Heavenly Eye World exist in every world, no matter which one. If Zhou Tian can truly find them, no matter how powerful the world is, when Zhou Tian attempts to annex the opposing world, it's conceivable that it would not be an impossible task.
However, it is clear that Zhou Tian initially found the weakness of the Heavenly Eye World, it can be said that it was extremely lucky, and such luck cannot be guaranteed at all times. Thus, if Zhou Tian were to confront those worlds now, with luck on his side, once he finds the other side's weakness, then with Zhou Tian's strength, it seems it would not be impossible to conquer those worlds.
But still, once Zhou Tian fails to find the loopholes in those worlds, then even if the current strength of the Abyss World is mighty, at that time Zhou Tian can only guarantee his own safety, wanting to easily annex another world as before, that surely would no longer be possible.
