What is your FiM headcanon?

Nightweaver20xx
My Little Pony - 1992 Edition
Wallet After Summer Sale -
Birthday Cake - Celebrated MLP's 7th birthday
Happy Derpy! -
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Evil
Really simple: Tell me some of the themes and backstory you think should be a part of the show, or are really a part of the show but they never tell you. It can be stuff only you think about, or themes others have come up with. I’LL START:
 
-Surprise is really the “super” version of Pinkie Pie  
-Celestia, Luna and Discord are actually fragmented essences of The Old Ones; they don’t remember their old lives, eons ago, but if they did, they would be infinitely more powerful  
-Equestria is actually Earth, but in the distant future  
-Fluttershy and Rainbow Dash actually do have romantic thoughts about each other, but feel weird about saying anything to each other  
-Spike, like all dragons, lives for thousands of years, and will watch nearly all of his friends die at some point  
-Fausticorn actually exists and was the first alicorn; she uplifted Celestia and Luna into alicorns milennia ago at the dawning of the world, but now exists only in the astral plane  
-Equestria is under constant threat of invasion from Tartarus, the Griffon Kingdom and the Dragon Empire; it’s only Equestria’s huge military, posted on the borders, that keeps down the threat  
-Celestia telepathically communicated with Luna during her imprisonment on the moon, and desperately tried to convince her to turn away from evil, but ultimately failed; that failure nearly broke Celestia’s mind
 
Probably some more stuff, but that’s a good start for now.
♥♥Princess♥♥Celestia♥♥
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The Bestia
Twilight is now immortal (I know it’s not canon, but screw it!)
 
Celestia and Luna are immensely powerful, but just try to hold back on useing said power so they don’t kill everything/
 
Fausticorn is the first alicorn/ creator of the universe/ Celestia and Luna’s parent.
 
And now for craziness: Celestia is really Twilight Sparkle from the far far far far faaaaaar future. Eons bleached her fur white and she eventually changed her mane. She hides her real cutiemark so Twilight doesn’t know who she really is.
boz
Lunar Supporter - Helped forge New Lunar Republic's freedom in the face of the Solar Empire's oppressive tyrannical regime (April Fools 2023).
Thread Starter - The evil council continuation

What the difference between this topic and Crazy headcanon? Does it have to make some sense here?
 
Well since I replied I may as well tell some of mines in case your topic go popular.
 
-The solar system was normal untill Unicornia break it to have a lever against pegasus and earth ponies.  
-The star swirl spell twilight repaired was just a plan by Celestia to bring her in the void.  
-The void is the homeworld of a naturally evolved alicorn race, while cadance and twilight are made alicorns artificially.  
-the elements of harmony have a mind of their own.  
-the diamond dogs needs magic gems to keep their form and intellect, if they don’t have any they regress to a wiona state. (Theory made up after the question about the diamond dogs topic)  
-Discord, sombra and possibily some others among gryphons and zebras had an alliance to rule the world together in order to prevent a last free country from freeing the rest of the world during their reign so we can expect more thousand years olds threats to reappear.
Background Pony #4AAE
Well, here is mine:  
Unknown to all mortal ponies, there is an astral plane where the gods of their universe reside and Celestia, Luna, Cadence and Sombra actually come from this place with Celestia and Luna actually being minor deities and Cadence and Sombra being major deities with Sombra being an Alicorn and the God of War and Death and Cadence being the Goddess of Love and they were madly in love with other. Eons ago, These four decided to rebel against the other gods but they were defeated and punished for their rebellion. Sombra, being the mastermind of the rebellion, was turned into a unicorn with no remerberance of his Godhood. Cadence, Celestia and Luna retained their powers but they were severely weakened and they too forgot much of their Godhood and they were thrown into the world of mortals as punishment with Cadence deciding to go hide. After millenia ( present time in the show), Celestia and Luna suddenly remebered their past and are now working secretly to remind Cadence of her and to revive Sombra and help regain his power and to remember his past in order to restart the rebellion with Twilight Sparkle being their secret weapon.
Palinor

The two young ponies that Pinkie Pie kidnaps during her Smile song were sacrifices. That’s why they were sad and not in school, that’s also why the one pony smiled as she witnessed the kidnapping. You see, Pinkie is a deity incarnation. We witnessed a few of her powers when she was stalking Cranky, like; completely erasing a statue of Celestia from existence, growing multiple limbs, squeezing into unreasonable spaces, summoning a parade (which may have just been fear induced obedience to her whims), and turning herself into a firework. I believe that were she to go for longer than a month without a child-sacrifice the powers she has would burst free of her form and plague Equestria with no hope. It had been a month and the suppression of her powers hadn’t fully taken effect until after the conclusion of the episode.
 
Why a child sacrifice?
 
The innocence, silliness, and energy is almost opposite to what god she is hiding inside of her. This is why she has so much of these qualities and the story about her cutie mark, her family, and the rock farm are all fabrications. The entire population of Ponyville, save for Spike and Twilight, knows the truth. There are three others who know.
 
Star Swirl, or at least he did know if he has died.  
Celestia, she was an accomplice since she’s not beyond this level of trickery.  
Another who attempted to bring this deity into Equestria. I’m keeping that one as a secret for now, it’s no fun if you spill the entire story.
Nightweaver20xx
My Little Pony - 1992 Edition
Wallet After Summer Sale -
Birthday Cake - Celebrated MLP's 7th birthday
Happy Derpy! -
Platinum bit -
Emerald -
Artist -

Evil
Ooh, I got another one I just remembered:
 
Discord, Q and Sheogorath are actually the same entity, and exist across all three universes at the same time. It also exists in our universe as dark energy.
Crayv
The End wasn't The End - Found a new home after the great exodus of 2012

The larger a dragon gets the more resistant to magic it becomes (in fact in the show I don’t think we have seen magic used on any of the large dragons), Hydras also might fall under the category.
 
There are no mosquitoes in Equestria.
 
Crystals have interesting interactions with magic.
DrCoolcabbage
Wallet After Summer Sale -
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The End wasn't The End - Found a new home after the great exodus of 2012

Everyone is fond of owls
Pinkie Pie is the Cake’s niece. She was sent to live with them after her parents realized that a rock farm wasn’t really a good outlet for a pony whose special talent is throwing parties and figured a bakery would be better suited for that.
 
Also, Mr. Cake is sterile. He and Mrs. Cake have been trying to have kids for a while (one reason why they took Pinkie in) and finally had to get a donor. This both explains why one twin is a pegasus and the other’s a unicorn, and why Mr. Cake was panicking after explain why his kids aren’t the same species as he is.
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