Board Thread:Theories/@comment-26472215-20160222034906/@comment-75.176.164.75-20160301181036

"They first appeared over 100 years ago...We were pushed to the brink of extinction almost overnight..." -Armin (Narrating)

I... kind of doubt that. I mean, like @Nitrate55 said, all signs of human civilization beyond the walls wouldn't utterly disappear in a single century. I suspect that mankind was fighting the Titans for at least a few years prior to the final assault that drove them behind the walls.

Additionally, I totally agree that AoT takes place in the future (at least a little). The Titans violate every known law of nature, and the only explanation I can think of is that they're Bio-Weapons, like others have said.

Besides, how else was humanity able to create this perfect little biosphere inside the walls, when outside, the landscape was utterly barren for at least 3 decades. (I know the Before the Fall manga isn't strictly canon, but at this point, we really have nothing else to go on...)