Board Thread:Manga/@comment-3568954-20150810140746/@comment-5774380-20150810161123

In fact, they have balloons. If you remember, Djel Sanes confessed that he murdered a couple that attempted to travel outside the Walls in a hot air balloon. That was precisely the problem: the government was always secretly sabotaging the attempts of people to leave the Walls and learn of the outside world and the truth about the Titans; but now that the old government has been taken down, there is nothing preventing people from doing it, but nobody has explored that possibility and could be a potential plot hole. Congratulations, you have just ruined the Return to Shiganshina arc. xD