Board Thread:Theories/@comment-27441457-20151225042055/@comment-26932251-20160607074200

But seriously, I'm of the opinion that one of the big reveals of the Attack On Titan Universe is going to be that basically the rest of the world is a utopian civilization and that the world within the walls and the outskirts is a prison and that the civilization outside of the rest of the world has the technical ability to synthesize more Titan Juice™ and doles it out to homelanders and the Reiss Family and speculating here but synthesizing Titan Juice ™  from scratch requires technical means totally unattainable to either wall people or homelanders (such as a particle accelerator or what have you, something big and complicated).

I mean, if we think about it logically... The World within the walls was supposed to go on in perpetuity. That would mean that its masters, the Reiss Family, would need to have a source. Maybe some G-Man brings a bag like what Rod Reiss has every generation.