We thought we’d heard every possible theory about Rey following the release of Star Wars: The Force Awakens.
Perhaps the answer is that Luke was trying to use the light side of The Force, while Rey was using the dark side.
Luke Skywalker spends most of Star Wars: The Empire Strikes Back standing on his head and trying to do some of the stuff that Rey seems to do quite easily.
What makes this new theory so interesting is the way that it actually explains away some of the issues that fans had with Star Wars: The Force Awakens.