Best Gravity Falls Theories

I think Bill will be defeated in one of three ways:
1. The infinity dice.
2. They go back in time and stop Mabel from giving Bill the rift.
3. They'll use Gideon's possession spell on Bill.

Stan's twin brother Stanley is probably my favorite theory. It just makes a lot of sense. For proof, check out the video Decoded #1: Stan's Secret Twin on YouTube.

I liked this theory from the beginning. P.S. Ford is one of my favorite characters!

Okay. This one is just really cool and freaky at the same time. This theory states that sometime in the future, a nuclear mishap will lead to the downfall of Gravity Falls. I personally believe very strongly in it.

This one makes so much sense! I like it just a bit more than the Stanley theory.

So cool! By the way, you should totally listen to the Weirdmageddon theme song, it's totally addicting!

Not What He Seems confirmed this, although I don't think his name is Stanley. I think that Stan faked his death in order to write the journals, and the one being Stan at the shack is Stanley.

Again with Stanley... For more information on this theory, search this video on YouTube: Decoded #1: Stan's Secret Twin.

Aw, remember the good ol' days when everyone thought Ford was Stanley? But really, Stan is Stanley, and Ford is Stanford. Get it?

We already know that Soos knows about the journals because Dipper told him in one of the shorts between Season 1 and Season 2. He entered Stan's mind to defeat Bill in Dreamscaperers, but what if he knows about the secret societies and more?

According to Bill Cipher's AMA (ask me anything), Soos doesn't know much. But oh well, it is Cipher we're dealing with.

Hey hambone, guess what? I actually knew more than we all thought! But it turns out I forgot to tell you dudes about Weirdmageddon... hehe.

This is a theory you probably haven't heard before. It's really interesting because this theory has various movie references that support it. Search for it on YouTube, Google, Bing, etc., for the explanation.

There's a theory that in the episode Double Dipper, Mabel made a copy of herself on the printer and named it Lebam, Mabel backwards.

Some believe Mabel has another twin but in another dimension. Her/his name is Lebam (Mabel backwards).

When Dipper reads the description for zombies in Tourist Trapped, it fits Robbie: pale skin, bad attitude, and he kind of just acts like one if you re-watch the series.

There is a lot of information backing this up, such as Robbie's sweatshirt, his band, the minivan in The Inconveniencing, etc.

Makes sense, but his parents own a funeral home and a graveyard. If he was a zombie, they would know.

I agree because I was reading a wiki, and it said he may come back! Like, regenerate? Either way, Bill is still cool. He misses his home, and he accidentally burned his parents with his world along with everyone else he knew. He acts like he wanted it, but he didn't want that.

In the episode Take Back The Falls, he looks like he misses home when he talks about his world.

This is actually very likely, knowing Bill's power. I think that Bill Cipher survived and created a stone replica of himself to trick everyone so that they wouldn't be expecting his next weirdness invasion.

Well, it is possible. I mean, there are little Easter eggs and little codes. Such as their code.

I believe Stanford's tattoo is some kind of urgent code that has not yet been deciphered.

I don't know if this one has been confirmed or not, but there may very well be two societies in Gravity Falls: The Royal Order of the Holy Mackerel and The Blind Eye Society.

Just look at Bill's wheel. Look at the llama. Then look at the llama on one of Mabel's sweaters. They are both facing opposite ways. Who knows? This might mean something.

That makes sense, actually. The llama is facing backwards, which probably means Mabel's former enemy, Pacifica.

In the "Northwest Mansion" episode, Dipper is turned into wood. Bill could have sneaked into Dipper's body. In the episode "Not What He Seems," Dipper has been acting weird. Dipper wanted Mabel to press the red button, and when Mabel didn't, he got mad. When Dipper started to fade away, you can see the Bill Dipper eyes, and you can hear the music that was playing when Dipper and Bill made a deal. There is so much more evidence that Bill is possessing Dipper. Also, in the episode "Northwest Mansion," McGucket told Dipper that he fixed the computer, and Dipper didn't seem to care. The Dipper we know would be like, "You fixed it!"

Definitely my favorite theory, and there is a lot of evidence to support it. Dipper and Mabel are nearly identical, so I think they were born as identical twins, both girls. This could also explain why Dipper only goes by his nickname and gets upset when he feels like he's not manly enough.

I totally agree with this. Quick question, though: Now that we know that Dipper's real name is Mason, what was/is his female name?

I think that his eye is the weakness. When Dipper tried to punch him in the eye, Bill pushed him away because he didn't want him to know his weakness.

His weakness is gold. This one is hard to explain. Look this one up also to find answers.

Considering the three were burned and Dipper still has no clue how to defeat Bill, another journal would make sense.

No one ever said that there are only three journals.

If you think about it...

So, things would have never happened in Gravity Falls if it weren't for time travel. Soos would have never worked at the Mystery Shack. Wendy wouldn't be friends with Dipper. Toby Determined would have been successful. Soos would never love his birthday. Robbie might have turned out differently. Mabel wouldn't know how to open the vending machine. Here's why.

When Dipper and Mabel go back in time to past Gravity Falls, they leave behind things. Traces of them.

Toby doesn't become successful because the twins told him that his dreams went nowhere. Perhaps if that hadn't happened, Toby would have become a Broadway performer.

Soos wouldn't have worked at the Mystery Shack. He would have never returned the screwdriver. He also would never have met the genius (Mabel) who taught him how to open the vending machine. It gets confusing here. I'll go back to this later.

Wendy wouldn't have made good friends with Dipper. When does Wendy first see Dipper? In Tourist Trapped? No. She sees him ten years back. She became Dipper's friend because he reminded her of her first crush, Dipper Pines. When he traveled back in time, Wendy was a kid, five years old, and she thought he was cute.

Robbie became somewhat traumatized after his experience with lasers. That tree blowing up in front of him could have changed him.

But, if Soos knew how to open the vending machine, who taught him first?

People assume that because of time travel, the things that happen just loop. But the thing is, Soos shouldn't know about the vending machine opening in the original timeline because no one went back in time to teach it to him. Thus resulting in... Great Scott! My head hurts.

Bill did once say to Ford, "Don't have a heart attack, you aren't 92 yet," when they first met. As Bill knows pretty much everything, Ford will probably die at age 92 from a heart attack.

Think. She decoded almost everything in Irrational Treasure. She's an official congresswoman. She solved Dipper's math problem in The Time Traveler's Pig, and there was even an episode called Boss Mabel. She is the center of everything in the series (and not because she wants to be).

In every episode that Mabel fell in love, every character wanted her as their "queen" or their "leader." Maybe if Mabel is the key, every magical creature knows, and that's why they want her as their queen.

Her sweater in Not What He Seems is a key. Hm.

If you remember the episode with the memory-wiping machine, in the background you can see a canister that says Pacifica's memories! This explains why she has blonde hair while her "parents" don't. There is another theory that goes the same, but instead, it's Buddy's wife.

Remember in Northwest Mansion, there is a banner on the wall with Bill on it, and people are praying to him. Well, I think that they knew Bill and that their memories were wiped by him. Because in Weirdmageddon, the Northwest family clearly did not know him.

I agree. Maybe the handyman knew too much. Also, "you guys are smart, especially the fat one."

Soos said that he would do anything for the Pines family, and this would mean a sacrifice.

Considering how the Author (spoiler) destroys the portal and refers to it as dangerous, and the countless references to chanting, summoning circles, possessions, etc., I'm sure Alex Hirsch is willing to go as far as hell and demons spilling into our realm.

Alex said it leads to the kind of places Bill and his pals like to hang out. Does Bill like to hang out in hell?

Yep, this theory is right. Bill's world pours into ours in the latest episode. And his friends...

There is a theory that Bill has a twin brother, either a square, circle, or upside-down triangle!

It might be a girl called Jill Cipher.

It could be a girl named Jill Cipher!