From a surprisingly erudite interview on the movie Inception:
The problem for me is that you’re using negative evidence to support a story that isn’t there. I don’t know what to say about a character who only exists before and after the movie. You’re talking about a character who isn’t on screen. And I mean on one hand, it’s awesome that this movie can sustain that kind of discussion. It shows you just how well-though-through and comprehensive it is, but I mean I don’t know where that kind of speculation ends. It’s like people who are convinced 9/11 is an inside job. It’s a mental heuristic failure to think that one or two minor details explain absolutely everything. I mean, kids wear the same clothes all the time.