Forum:My little theory

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Kinda of a big story.

First of all, I believe that "adventure time" happens after the apocalypse caused by a nuclear war (you can see two nuclear bombs at the intro of the show), during the episodes you can see in background cars destroyed, skeletons everywhere, and lots of technological stuff and buildings that seen to belong to a long forgotten world.

In "Ocean of Fear" you can see a sunken city ond the bottom of the sea and a dried sea in "The Other Tarts" full of ships, giving even more evidence that they bwlong to a very old civilization.

So what happened to the humans?

Most of they died, as seen in "Her Parents" humans are pretty much extinct, and Fin never found another human. Some humans mutated into some more, in "The Other Tarts" a bunch of zombie’s attack Fin in a cave, and in

"Susan Strong" he found a bunker (most likely a nuclear bunker) who evolved into fish people from living underground for so long.

Fin mostly came from the bunker, since he was found in the forest and humans are a really rare specie in this world its hard that exist another hidden ground of humanoids near there, also all the tribe use funny hats, it could be the symbol of the tribe, explaining why Fin have his hat since child.

But then how Fin got to the surface and why he was taken there?

He was obvious not taken there by his tribe, seeing how all the bunker people where afraid of grass, meaning it was their first time on the surface.

I believe he was expelled from his tribe because he was not a "fish people", unlike his family, he was born a full human, maybe is a rare condition since fish people where humans a long time ago.

From here I have two theories.

First is that the tribe tried to kill Fin since he was not a fish people, (they did not try to kill Fin in Susan Strong because of his hat and they though he was a fish people), but his mother took him and run to the surface, scared,

the tribe didn't follow, what happens after that is a mystery and maybe some new episodes shine a new light to this.

The second theory is that they drown all the kids born as human (something to do with being a fish i guess)

Fin someway found a way to breed underwater (water pocket or help of some creature) and floated to outside the bunker though a crack, explaining the water in the bunker and the evolution of humans to fish people.

Water + Radiation = fish people.

This would also explain Fin fear of the sea, since he almost died in it as a kid.

After that everything is pretty simple, radiation created all sorts of new life’s, some from humans and a new world was created.

What about magic?

It seen that magic always existed in the world, in the episode "The Chamber of Frozen Blades" Fin find a ninja book from before the war, where he learns techniques very similar to the magic of this world, meaning that before the war ninjas already had the ability to use magic, maybe with all the technology destroyed creatures where most connected to the nature, making magic a more natural thing.

I guess this is it, I hope its easy to read since English is not my first language and you can enjoy my little theory, feel free to give me some feedback, thanks!

TL, DR: Adventure time occur after a nuclear war.