Recently, the culture of comic book movie fan theories received a significant shot in the arm when it was revealed by Tom Holland that the long-standing theory that Peter Parker was in Iron Man 2 was actually true. Sort of. Sure, it was pretty self-serving, and the legitimisation is based on the rather flimsy fact that Kevin Feige didn't say no, but it felt like a victory.
It was a win for all of those fans who pour their time into trying to answer comic book movie mysteries that others didn't even think needed answering. It was a win for fans who watch films a completely different way to everyone else. And most of all, it was a win for all of the future generations of fan theorists who might now feel that their own ideas might be validated as ret-conned truth in the future.
The problem with that, of course, is that a good deal of those theories are pretty lunatic. Some will never feel the warmth of legitimisation because they're completely off the chart bonkers. But among even the most colourful and unbelievable are the seeds of good logic.
In fact, some of them sound so compelling you almost want them to be true...