LOL. Bingo, I am loving the complex theories. I never would have thought about such things. I wonder if there are two Amy and Rorys at the same time. Certainly it could be something the Doctor is overlooking. Alternatively, I could go for the theory that the past is being rewritten and the Doctor has not yet fully noticed. For example, perhaps Mel/River wasn't always part of Amy and Rory's pasts.

In any case, I'm definitely excited for the finale. On that subject, I am surprised no one has mentioned the Madame Kovarian-esque eyepatches everyone is wearing in the promo photos. Madame Kovarian can supposedly see the Silence Aliens and not forget them, as shown by last episode's end. Does anyone else think that those eyepatches could contain photos of the Silence? It would make sense as to why the protagonists would start to use them, so they can finally get to not forget the Silence... What do you think?