Board Thread:General Discussion/@comment-9219983-20131108055117/@comment-3387274-20131212205719

the way the swords fold and collect together means they could fit in her backpack. Anyone who doubts that I will compromise with by pointing out that it would be simpler to have them fold further out of view than it would to explain a ridiculously human looking robot, or how her dress moves out of the way.

They are controlled by the strings as well, and are clearly gunblades. The only thing unexplained about them is how they float.

as for her outfit, the pieces attached to it that look even remotely mechanical are mostly set in such a way that they can't be attached to her body as well, so that's out. her leggings are an exception, but hardly one that proves the rule.

And penny herself, her speach patern is hardly a valid argument given how diverse and odd some of the characters we've seen so far are. Same goes for her actions

Which means the only real thing that would suggest she's a robot is the scene in the car at the end, which could mean any number of things. So no, frankly I have no idea whatsoever why people think she might be a robot of some kind.