User blog comment:EmberRose123/Penny's Swords/@comment-14843841-20131109222300/@comment-14843841-20131109234650

I don't pledge alliance to the theory, but there is evidence that supports the claim. People didn't come up with for kicks. Her way of speaking, her behaviour, her power even though she's supposedly 17 like the other students, the belief that her inspiration came from Pinnochio(Marionette==>Android)...those are pretty sound.

On the backpack deal, her lack of it in the previous episode might just be an incosistence like several other and I say it seems like they come off of her body because A) the number of swords to be ejected from it, B) The back is completelly black in the inside, making it look deeper then it's volume, C) The wires attached to the swords come from inside the backpack, which she uses to anchor herself while pulling the airship. it seems pretty unbeliveble that they would be hooked on her BP alone. D) Penny manipulates the swords without a swing of an arm. It's safe to believe she controls them with though. E) Her very emblem is the Power Buttom. F) Her conversation with whoever is in the limo with her makes it look as she's under direct comand of a person. Her "creator", maybe.

I have a couple more but I think I made my point. As you can see, there's plenty of reason to believe she's artificial, far more probable than Blake or Ruby imo.