First appearing in the spring of 1999, Digimon has been around longer than some anime fans have been alive. Since its inception, there have been six seasons, multiple video games, movies, comic spin-offs, and a sequel series called Digimon Adventure tri. Even with all that material, there are still some plot holes that need filling, and that's where Digimon fan theories come in. Fans from all over the internet have unique and interesting views on how things really went down in the Digital World, and what different aspects of the series might allude to. Are the Four Dark Masters actually supposed to represent the Four Horseman of the Apocalypse? Are Digimon secretly corrupted Pokémon files? And what's up with the Digital World, anyway?
Sam Knows What The Digivice Is
Sam Ichijouji's computer spits out the Digivice that eventually ends up in Ken's hands. Sam forbids his younger brother from touching the Digivice, which of course prompts Ken to grab it when Sam leaves the room. Sam snaps at his younger brother, telling him that he broke his trust. It's possible Sam got so angry because the Digivice is a mysterious foreign object, or because he doesn't want to take any risks that might get him in trouble with their parents.
However, some believe Sam knows exactly what it is, and is purposefully trying to prevent Ken from experiencing the Digital World. Support for this theory stems from the fact that he may have been friends with Ryo Akiyama, a character who is seen with Ken when he actually does go to the Digital World. Ryo may have told Sam about the Digital World and how dangerous it could be, prompting Sam to go into protective older-brother mode to shield Ken from the risks of owning a Digivice.
The Digital World Is A Multiverse
Each season of Digimon has a slightly different take on reality, so much so that you might guess they're actually different versions of the same world.
YouTube user Viewer Online101 provides an in-depth explanation of this theory. Not only do these extra layers exist, but each one is connected with its own version of the real world. Crossover between different worlds is possible; for example, Ryo Akiyama exists both in Digimon Adventure and in Digimon Tamers, a world where the characters from Digimon Adventure are fictional. In Digimon Fusion, characters from multiple Digimon universes join up to defeat Quartzmon. Yggdrasil connects all versions of these worlds, and governs them all.
Each Digimon Name Is A Class File
Have you ever wondered why all the Digimon's names end in the suffix "-mon?" It could simply be because Digimon is a portmanteau of "digital monsters" but it could be for another, more intriguing reason.
According to Redditor /u/TheRealQwade, "-mon" isn't a suffix at all, but the name for a class file, like ".docx" or ".mp3." Each Digimon name is actually a file that contains all the information and attributes necessary to run each species' specific "program." So, Agumon isn't really Agumon, but "Agu.mon."
This way of thinking also impacts the Digimon's attacks and evolution. Rather than natural behaviors, these are functions coded into the class file.
The 02 Finale Was Thrown Together At The Last Minute
To many Digimon fans, the 02 finale doesn't make a lot of sense. Many of the character's careers are illogical and seemingly random, their children look like clones, and the end-game pairings are largely disconnected from what actually happens in the series. Why is the ending so unsatisfying?
Some fans think the real ending was a prequel to the third Digimon series, Digimon Tamers, but because the network was unsure if the series would be greenlit or not, a new ending had to be thrown together at the last minute. Had the production team actually had a chance to put genuine effort into the epilogue, the kids might have gotten more interesting designs, and Matt might not have been an astronaut.