Yeah, exactly. I thought it was very obvious that he wasn't giving one answer or the other for certain-- and I guess part of the reason I saw it as a joke was because I know that in The Prestige a lot of people thought the movie failed because they "guessed the ending" when Nolan was trying to make more of a Hitchcockian suspense, where you're supposed to know the ending from the beginning and the point is watching the character go made trying to get to where you already are. There's this whole school of moviegoers who expect everything to have a twist ending and judge movies solely based on whether it's guessable. I think there are some movies that fail if the ending is guessable (I enjoyed Shutter Island but felt like the guessability of the ending took away from the movie, and The Village is just a total piece of crap because of that aspect), but I feel like a good movie is one where you can know the ending going into the film for the first time and it will still stand up as a story. So I felt like this was his sort of little in-joke about audience reactions to The Prestige, but joke or no joke, yes, we're in agreement about that part.