User blog comment:Raul123alin/My theory about the origin of the titans/@comment-9096809-20130813071553

you make it sound too sci-fi-ish. i think there millions of titans in the snk world, there couldn't be so much nano machines for all of them.

it most be some kind of virus, a genetically modified virus. i remember reading a tie-in comic to the movie 28 days later (awesome movie BTW), where they tried to modify the flu virus to suppress the rage in humans minds, but instead the virus did the opposite and it turned humans into raging zombies.

my point is that all of these titan can't be human made, there's too many of them, it has to be an epidemic that turned them all into titans.