The film’s only post-credits scene is allegedly about Ned’s Spider Tracker. It doesn’t put Spider-Man somewhere in New York, infact anywhere on Earth 616, for that matter, but off-planet. For many viewers, the immediate assumption is that the tracker has picked up another Spider-Man from a different universe, perhaps Tobey Maguire, Andrew Garfield, Miles Morales or some other multiversal variant. But an emerging theory suggests something far more significant.