As with any successful franchise, there is almost endless fan speculation about everything under the sun when it comes to both DC and Marvel's comic universes. And, much like any fan speculation, these theories range from absolutely believable and immensely well thought out, to some of the strangest twaddle to have ever been typed out by human hands.
But the beautiful thing about comics is that, with the actual canon of Marvel and DC being so unbelievable, even the most hog wild of theories has at least a small chance of coming true. Any weird and wonderful idea you can think of is a possibility, and even disproven theories have their value, in that it's endlessly entertaining to witness the innermost madness of a comic fan's head, in the form of their most surreal speculation.
Sure, Superman isn't going to turn into sand anytime soon - but that doesn't mean that it's not one of life's little pleasures to read people on the internet arguing about whether he could be.
Containing secret Skrulls, an omnipotent child, and the Joker's secret life as a deity, here's solid proof that the internet isn't always just a nightmarish pit of cat pictures and canceled celebrities, but also fertile ground for some truly brilliant theories.
10. Superman Has One Power
While it completely rewrites maybe the single most important detail about Superman, it's undeniably fascinating to think about the fan theory that Superman has a single superpower, instead of the entire Swiss army knife of abilities he canonically possesses.
Although this initially sounds crazy, it would actually make a lot of sense for Superman to have one specific superpower: the ability of telekinesis. Not only would this explain how he can fly, it also could explain powers like heat vision, which would merely entail him vibrating molecules until fire forms. Add to this the potential for subconscious mind control, and you also have a more solid reasoning as to why nobody recognises Clark Kent as Superman - because he's telling them not to.
Sure, it doesn't explain powers like his super hearing or X-ray vision, but it's still a fun theory - even if it's not one that's going to be proven true anytime soon.