8. The Moment Is The TARDIS
This one is a bit of a theory coming out of the The Day of the Doctor, and based on how Billie Piper's Moment acted and talked as it seemed very reminiscent of Idris from The Doctor's Wife. The bit about remembering things from outside of a timestream by mixing up the past and future they certainly do seem like similar characters. But I'm not entirely convinced that they have to be the same person. They may simply be two similar Time Lord devices working in a similar manner. We've seen how powerful that the TARDIS can potentially be after all, Rose Tyler with the heart of the TARDIS in her made all the changes in Bad Wolf. Essentially you could say that she was partially possessed by the TARDIS while Idris was the projection of the TARDIS' personality. Perhaps it's the Bad Wolf bit which is the connection here after all, the Moment selected as its embodiment an image of a person whilst they had the heart of the TARDIS in them, which may have been powerful enough to fiddle with time locked Time Wars etc. Or it could have just been an extreme coincidence. Mind you, I don't expect there would be a sufficient reason to revisit the issue and explain one way or another.