Fan theories have been around for a while but now in today's age they're everywhere. There's more than likely a person who guessed correctly and posted online that latest twist on your favorite show before it aired. After reading fan theories you won't be able to watch your show in the same way again. Here are some logical theories for your mind to obsess over.
"The one about Bojack Horseman just being a long setup to a horse walks into a bar joke. Everyone he loves will die and then in the final episode he will walk into the bar he always goes to and then the guy will ask why the long face? It will then go into the outro music which perfectly explains why he would have a long face if you listen to it" (Source).
"The Dursleys were so cruel to Harry because they were under the influence of the Horcrux in his head. We've seen that even short exposure to the locket Horcrux messed with your head, so why couldn't the piece of Voldemort's soul in Harry be affecting the way the Dursleys perceived him? Especially since they were exposed to it over the course of years. This can also be used to explain; why the entire school/ wizarding world turned their back on their hero several times (heir of Slytherin/ Voldemort isn't back). And why Ron was so quick to abandon him in Goblet of fire. And basically any other time anyone is unnecessarily mean to Harry; the Horcrux did it" (Source).
"Bender from Futurama wasn't a criminal until he met Fry. When we first meet Bender, he's ready to commit suicide because he found out he was helping to make suicide booths. This doesn't tally with the Bender that we get to know throughout the course of the series. In fact, nothing he says before they run from Leela in the first series suggests that he's nearly as bad as the Bender we love. When they try and escape from Leela in the head museum, Bender gets shocked via an old light fitting. My theory is thus; in doing so, it caused Bender to reboot. In the penguin episode, we see that Bender resets into a mode relevant to his surroundings - he sees penguins, he boots into penguin mode. Therefore, since he rebooted in the hall of criminals, the first thing he sees is the heads of famous criminals, and therefore reboots into the lovable but highly-illegal rogue" (Source).
"The one about Darth Sidious stealing Padme's life force to keep a fatally injured Vader alive at the end of Revenge of the Sith. Basically Padme doesn't die of a broken heart, but rather Palpatine used his mastery of the dark side, which he learned from his Master, Darth Plagueis, to sap her life force and transfer it to his new apprentice Vader after his defeat on Mustafar. The opera scene in Episode 3 tells how Plagueis taught his apprentice everything he knew and that he has discovered how to create life. With that knowledge, Palpatine he was able to save Vader from otherwise lethal wounds" (Source).
"The Matrix: the 'real world' outside of the Matrix (Zion and all the weird tunnels) is actually another matrix. The people Mopheus unplugs are actually in a matrix inside the Matrix. Everything with Neo, Agent Smith, the war with the machines in Zion... it's all fake. It was made so that the humans who find out about the first matrix can have a false sense of victory over the machines, keeping them happy and docile inside the bigger matrix" (Source).
"The Eds from Ed, Edd, & Eddy are victims of parental abuse. Ed - Favoritism, his sister is in a 2nd floor room with toys, a plush bed and other amenities. Ed is in the basement with a TV, VCR, and old out of date toys.
Edd (double d) - Neglect, follows parents orders through sticky notes, implying they're not home often.
Eddy - Expectations, always looked up to his brother, preserved his brothers room after leaving, never seems to escape the shadow his brother left him" (Source).
"I like the Rick and Morty theory that the evil Morty we see in Close Rick-counters of the Rick Kind is actually Rick's original Morty, but Rick thought he died in the scene from the opening credits. So Rick searches the multiverse for a family situation with a good Morty and jumps universes. This would explain why Beth is always talking about how her father suddenly came back into their lives" (Source).
"Surprised I have not seen the one about the Flintstones and the Jetsons actually taking place at the same time. Due to war the surface of Earth was decimated (back to the stone age) so The Jetsons (and all the people they know) live high up in the sky where things are clean and new. Whereas the Flintstones live on the surface where everything is made of the remnants of society. It also explains why the Flintstones have technology that seems to be out of place (like record players and cars)" (Source).
"I feel that Harry Potter fans tend to overdo it with fan theories, but there was one I especially like: That the three lead characters represent the other three houses (Harry Slytherin, Ron Hufflepuff, and Hermione Ravenclaw), and that the Sorting Hat puts those in Gryffindor who have the courage to ask for it" (Source).
"My personal favorite is the one where Bruce Wayne gets sent back in time and ends up killing his own parents. He then has a mental breakdown and ends up becoming the Joker. C&P It's a couple years from now, the chips are on the line, the multiverse is at stake, again... only this time it all comes down to Batman.
He defeats the ultimate evil of the DC universe, only to find himself launched through time... into a strangely familiar city. Scrambling to find some clothes after his costume got destroyed by Z-rays in the epic final battle, he nabs some threads off a low-hanging clothesline. He leaves his bat-wallet full of cash on the windowsill... he's not a bad guy, after all. Just then, he sees a family of three emerge from the alley nearby. With a strange sense of deja vu, Bruce recognizes... his mother and father, and his childhood self. This is the night Bruce's parents were murdered! Bruce whirls around, looking for the culprit, 'Joe Chill', but the only people there are himself and the Waynes. They barely glance at the ragged figure as they start to walk past. With a spike of cold horror, Bruce realizes that in its final death throes, the ultimate evil he had faced in the future sent him backwards through time for a very specific reason. Color draining from his face, Bruce reaches a hand into the borrowed coat's pocket... to find a dense, metallic lump. Drawing it out of the pocket, he comes face to face with a snub-nosed revolver. A flash of terrible insight comes to Bruce along with an iron certainty. Without Batman, the universe would never survive the ultimate evil. Without this night, there is no Batman. This is his only chance... he must choose: break his one rule (to never kill), or be complicit in the assured annihilation of the universe. There is no real choice. With tears streaming down his face, he remembers with trained photographic memory the hollow words the mugger spat at the elder Waynes. They turn, startled. As if his hands had minds of their own, he feels the pressure on his fingers as he slowly and inexorably... pulls the trigger. Bruce Wayne has killed his parents in order to save everything else. In a blind haze, Bruce the elder stumbles from the alley as Bruce the younger wails into the night. Nearing the Narrows Bridge, Bruce's mind begins to crumble under the weight of what he has just done to himself. Unable to bear the maddening maelstrom of conflicting grief and certainty, he climbs to the highest point of the Bridge, looks out over the long-suffering city, and jumps without looking into the icy depths a hundred feet below. Later that night, dockworkers pull a body from the water. No ID, no wallet. Nothing in the pockets but a gun and lint. Broken, deathly pale... but alive. As the foreman hangs up the call to the cops, he almost swears he hears something from the body. It sounds almost like... laughter. It is the laughter of a man who knows the funniest joke in the world, but just can't quite remember the punchline" (Source).
"In Harry Potter and the Deathly Hallows, there's the story of the Three Brothers. During Harry's time, they are represented by Lord Voldemort (the brother with the Elder Wand, who dies), Snape (the brother with the resurrection stone, who also dies) and Harry himself (the brother with the invisibility cloak that hid from Death itself and survives) Albus Dumbledore represents Death. He gives Harry the invisibility cloak, then the resurrection stone, and he ultimately has the Elder Wand too. He also briefly greets Harry in the afterlife. JK Rowling liked this theory enough to approve it, in fact" (Source).
"Jurassic Park never had any dinosaurs, just genetically modified creatures designed to resemble them. The flea circus scene in the book and movie, the dwarf pygmy elephant scene in the book, the admission that most sources of dino DNA are too degraded in the book and movie, there's a lot of hints that Hammond is continuing his huckster style. The main plot has them visiting the island for a safety check, but what do a paleontologist and paleobotanist know about safety checks? If Hammond can fool them, he can fool anyone. Not to mention the real-world problems with using preserved mosquitos as a DNA source and the changing nature of dinosaur knowledge (no feathers, when we now think they did have them. Nice try to retcon, Jurassic World, I ain't buyin' it). That is, the 'dinosaurs' we see in Jurassic Park have virtually no actual dinosaur DNA, but were heavily genetically modified versions of other base creatures that we do have DNA access to. Hammond admits twice (in the novel) to tricking people into seeing what they want to see - in once case, where a mechanized circus with no fleas has children claiming to see the fleas, and in another, where a natural pygmy elephant with dwarfism was used to demonstate the powers of genetic engineering (by heavily implying it was itself the result of genetic engineering). The 'dinosaurs' in Jurassic park were the ultimate extension of this - animals with no actual dinosaur DNA, but engineered to fool people into believing they are actual dinosaurs" (Source).
"I like the one that Ash's Pikachu is actually a Ditto that's in too deep and is worried Ash will reject him if he told the truth. Going into a pokeball would reset him back to a blob, and he can't actually evolve, which is why he has always refused to do so" (Source).
"The movie Event Horizon takes place in the Warhammer universe and is a story about early early humanity faster than light. Everything that happens in the movie is reminiscent of when a spaceship travels through the Warp without an anti demon field called a Geller field" (Source).
"I also made a fan theory about Mickey Mouse Clubhouse. Toodles is a time machine. Tolddles lives a day with Mickey and the gang, find out what type of problems they encounter, then travels back in time to find the type of tools that would help them, and re-lives the same day. That's why Toodles always has the perfect mousketool to solve the problem! Toodles also has the Secret Mousketool, which is Toodle's way of solving a new problem that may arise as a result of the butterfly effect" (Source).
"Ditto is the first attempt to recreate mew. Ditto is the same color and weight as mew. It is also the only other pokemon (in the original 150) that can use any move in the game. Mewtwo was the second attempt to recreate mew but Mewtwo went berserk and destroyed the lab. Clarification. Mewtwo being created and destroying the lab is canon but the theory part is the he is the second attempt with ditto being the first attempt. There is another theory saying that every ditto (since when ditto breeds the egg is never hatches a ditto) was a failed attempt so Mewtwo was probably the millionth attempt" (Source).
"The Shepard is indoctrinated theory is one I think still holds out fairly well. Basically there are a number of subtle signs that Shepard in Mass Effect 3 is actually being indoctrinated (mind controlled) by the Reapers over the course of the game. Lot of fans latched onto the theory after the rather mediocre ending to the trilogy" (Source).
"Han Shot First is a very meta commentary on how winners of wars re-write history. Before the Empire fell, all video evidence clearly showed that the terrorist/rebel shot first. After the Empire was overthrown (right after RotJ when just after the Laser Disc version was released), evidence was tampered with and history was re-written by the victors in a way that makes 1984's Ministry of Truth look like amateurs" (Source).