History Main / IKNEWIT

** Tobi in particular went back and forth on this. Initially, many people claimed that Tobi was really Obito, but a smaller group thought he was Madara Uchiha. Eventually, he publicly announced himself as [[spoiler:Madara, only to have it eventually turn out that he really ''was'' Obito all along.]] Everyone got feel they're right at one point![[hottip:*:Except the people who thought he was Izuna, they were just wrong.]]

** Chapter 599: [[spoiler: Tobi really ''is'' Obito, apparently.]] Only half of the fans are having this reaction, though; the other half are afflicted with a severe case of FlatWhat

* In ''TheSagaOfTuck'', the fact that Tuck (Valerie) is intersexed.

* As much as the creators of ''Film/TheDarkKnightRises'' tried to deny that new characters Miranda Tate and John Blake were anything more than they appeared, it was correctly guessed that they would be [[spoiler: Talia al Ghul and Robin, respectively]] long before the film hit theaters.

* In ''HarryPotter'': [[spoiler: R.A.B was Regulus Black, Harry was a Horcrux, Snape loved Lily]]... But really, with the sheer number of theories circulating, at least some of them had to become true.

* In ''Series/{{Glee}}'' the user [[http://www.fanfiction.net/u/2166416/GeniaTheParadox GenialTheParadox]] guessed that David Karofsky [[spoiler: [[ArmouredClosetGay was gay]] and in love with Kurt]] two months before Never Been Kissed aired.
** Klaine break-up,[[spoiler: principaly because Blaine cheating]] , was the base of a lot of Kurt/no-Blaine fanfics. We even had a fics that recreated most of the reasons of the break-up.

** Recent chapters introduced readers to Kanae Katagiri, a maid in the employ of the Ishida family. Due to [[spoiler:her closeness to Ryuken]], everyone singled her out as [[spoiler:Uryu's mother]]. To no one's surprise, this was eventually confirmed to be the case.
** Many people had guessed that [[spoiler:the resemblance between Yhwach and Zangetsu]] ''wasn't'' a coincidence; a few dared to think further and proclaimed that '''[[spoiler:Yhwach was Zangetsu]]''', only to be laughed at. Guess who had the last laugh?

* Many new fans of ''Franchise/YuGiOh'' by way of ''[[Anime/YuGiOhGX GX]]'' were sure that Judai/Jaden would duel Yugi on the last episode, which more seasoned fans dismissed as noobish nonsense. Of course, while that's actually what does end up happening, [[spoiler: instead of dueling the present-time Yugi of ''GX'', we're treated to a spastic TimeTravel sequence where Judai duels the Yugi of the past while he still has the spirit of Atem, setting up a StableTimeLoop to ensure that Yugi would know to give Judai Winged Kuriboh before he enters Duel Academia.]]

** A long running joke regarding Yammy's power ended up being true. [[spoiler: It was joked Yammy was really the Zero Espada. He was.]]

** An equally old theory speculated about Masaki having the spiritual ability to see hollows to explain her behaviour the night she died. [[spoiler: Yes, the theory was that she'd be revealed as a Quincy. Yes, the theory was that she'd be related to the Ishida clan. Yes, she turned out to be a Quincy and, yes, she turned out to be Ryuuken's cousin.]]
** Recent chapters introduced readers to Katagiri, a maid in the employ of the Ishida family. Due to [[spoiler:her closeness to Ryuken, everyone singled her out as Uryu's mother.]] To no one's surprise, this was eventually confirmed to be the case.
** Many people had guessed that [[spoiler: the resemblance between Yhwach and Zangetsu]] ''wasn't'' a coincidence, a few dared to think further and proclaimed that '''[[spoiler: Yhwach was Zangetsu]]''' only to be laughed at, guess who had the last laugh?

* ''DigimonAdventure02'' had people correctly guessing that [[HijackedByGanon Vamdemon]] [[BigBad orchestrated the events of the series]] after somehow surviving his death in ''DigimonAdventure''.
* Boy were ''{{Saiyuki}}'' fans excited when [[spoiler: MadScientist, [[SinisterMinister Evil Priest]], and Resident Plushophile Nii's missing Sutra turned out to actually be hidden within his stuffed bunny companion.]] Speculation had been made literally years in advance.
** Also, fans had been assuming since [[{{Prequel}} Saiyuki Gaiden]] started that Hakuryuu/Jeep was the reincarnation of Dragon King of the West, Gojun. Guess what?

* Many people had guessed that [[spoiler: the resemblance between Yhwach and Zangetsu]] ''wasn't'' a coincidence, a few dared to think further and proclaimed that '''[[spoiler: Yhwach was Zangetsu]]''' only to be laughed at, guess who had the last laugh?

** When Chapter 474 ended on a CliffHanger with Danzo taking some sort of seal off of his apparently non-functioning arm, and before the next chapter came out [[http://www.narutoforums.com/showpost.php?p=30105086&postcount=113 one person correctly guessed]] that it would be [[spoiler:the eyes of a bunch of a bunch of ''other'' Uchiha killed attached to his arm]].

** Chapter 599: [[spoiler: Tobi really ''is'' Obito, apparently.]] Only half of the fans are having this reaction, though; the other half are afflicted with a severe case of FlatWhat.

** "The Woman": [[spoiler:Irene really being Moriarty had also been called by some fans, although it probably blindsided most of the audience.]]

It's well known that [[EpilepticTrees wild fan theories]] are prone to being {{Jossed}}.

Sometimes, however, the opposite happens: after much speculation, a fan theory is finally confirmed in canon, proving that the trees were, in fact, epileptic all along. Cue the perpetrators of the theory exclaiming: "IKnewIt! Told you so!"

* Many people guessed the ending of ''Manga/InuYasha'' since the first 20 chapters. What would happen with Naraku, Kohaku, Miroku, Sango, Kikyo and pretty much everyone in the entire show was figured out years before.
* ''Manga/{{Naruto}}'' had so many fan theories going around that's some were bound to be true:

** Given Aizen's habit of claiming he'd planned things was reaching mnemetic proportions, fans were speculating Ichigo's growth in power was down to his planning, too. It was. [[spoiler: In fact, Aizen's interest in Ichigo seems to have predated Ichigo not only being born but even being conceived.]]
** A long running belief about Gin's motive for going with Aizen turned out to be true. [[spoiler: The theory was that he was looking to betray Aizen and that it would have something to do with Rangiku. Both turned out to be the case.]]
** A very, very old theory had fans theorising Isshin shinigami identity turned out to be true. [[spoiler: The theory was that he was a Shiba and the former tenth squad captain in charge of Rangiku and Hitsugaya prior to Hitsugaya becoming its captain. The theory was right on all accounts.]]
** An equally old theory speculated about Masaki having the spiritual ability to see hollows to explain her behaviour the night she died. [[spoiler: Yes, the theory was that she'd be revealed as a quincy. Yes, the theory was that she'd be related to the Ishida clan. Yes, she turned out to be a quincy and, yes, she turned out to be Ryuuken's cousin.]]

* ''TheDresdenFiles'': [[spoiler:Harry will give Fidelacchius to Karrin Murphy, as confirmed in ''Small Favor''. Then the substance of the theory was promptly {{Jossed}} when she turned down the offer after drawing the sword once, although that could change at any time.]]

* In ''Glee'' the user [[http://www.fanfiction.net/u/2166416/GeniaTheParadox GenialTheParadox]] guessed that David Karofsky [[spoiler: was gay and in love with Kurt]] two months before Never Been Kissed aired.