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1%%²%%²%%²%% Please do not put fan theories as examples on this page.²%% Please put fan theories on the WMG page of ''Series/DoctorWho''.²%%²%%²%%²%%²''Series/DoctorWho'' named the TimeyWimeyBall trope, so naturally it uses it quite frequently.²²As a rough general rule, [[StableTimeLoop Stable Time Loops]] work, but doing [[GrandfatherParadox something that will prevent you from going back in the first place]] has varying degrees of bad consequences. The specifics, however, are a bit more complicated... At least the show is honest about the fact that it's not consistent.²----²[[foldercontrol]]²²[[folder:General]]²* It's actually mentioned in the classic series that the Time Lords deliberately took Gallifrey out of its own time to prevent any potential rogue Time Lord from ever altering Gallifrey's history. Then again, it's also stated time and time again in the old series that Gallifrey can't be destroyed, and look what they did in the NA and the new series. [[note]]The Doctor is just that good. Except all of him are able to travel into the Time War and save Gallifrey.[[/note]]²* To add to the weirdness that is time-travel in ''Series/DoctorWho'', look at its opinion on the Blinovitch Limitation Effect. In some cases it seems to suggest that NeverTheSelvesShallMeet, lest they cause reality to shatter. Or maybe that's only if there's another paradox nearby. Sometimes it causes memory loss if the two touch, like what happened to TheBrigadier. Maybe the same object touching will just cause sparks. Or maybe nothing will happen at all except flirting. It's just whatever happens to work for the plot.²* The Doctor has also stated in the past that his knowledge of history is "perfect"; this may mean that he knows exactly what he may or may not change.²** And if there's any discrepancy, it's obviously history that got it wrong!²** Or the Doctor is just flat-out lying. ²[[/folder]]²²[[folder:Original Series]]²* Perhaps the show's earliest use of this is [[Recap/DoctorWhoS2E7TheSpaceMuseum "The Space Museum"]]. The First Doctor and his companions arrive at a planet with a space museum in it, but due to the TARDIS "jumping a time track", they arrive JustOneSecondOutOfSync, rendering them invisible and inaudible to anyone else. While there, they see themselves trapped in museum display cases. When their InvisibleMainCharacter status wears off, the cases go away, they're still inside the museum, and they have to escape or otherwise find a way to avoid the fate they saw for themselves. The Doctor claims that time has alternatives.²* [[Recap/DoctorWhoS9E1DayOfTheDaleks "Day of the Daleks"]] may have been the TropeCodifier for the TimeyWimeyBall in ''Doctor Who''. Guerrillas from an alternate 22nd century try to assassinate Sir Reginald Styles to prevent him from disrupting a peace conference, which caused wars enabling the Daleks to invade Earth. In the process, they [[StableTimeLoop disrupt the conference]] themselves. However, the Doctor is able to travel back from this alternate future and stop the guerrillas.²* The Doctor recognizes the Sontarans in [[Recap/DoctorWhoS11E1TheTimeWarrior "The Time Warrior"]], complete with asking about their interminable war against the Rutan Host, despite them never appearing in the series before. It's shown ''12 years later'' that the Second Doctor had [[Recap/DoctorWhoS22E4TheTwoDoctors encountered them before]], along with the Sixth Doctor. It's also possible, given that he's already been travelling for a few centuries, that he's heard of them or met them in a NoodleIncident.²* [[Recap/DoctorWhoS13E3PyramidsOfMars "Pyramids of Mars"]] has the Doctor show Sarah Jane how time has its alternatives. Even though Sarah Jane is from 1980 and knows that the world wasn't destroyed in 1911 by [[OmnicidalManiac Sutekh]], the Doctor takes her to 1980 and shows that Earth has been destroyed as they didn't stop Sutekh escaping. This is partly accounted for, as the Doctor says that individuals can shape the future but only [[PhysicalGod powerful beings]] like Sutekh can destroy it.²* In [[Recap/DoctorWho20thASTheFiveDoctors "The Five Doctors"]], the Doctors remember their previous encounters with each other. Two also remembers Omega just fine. He also knows that Jamie and Zoe had [[spoiler:their minds wiped]], even though that happened just before he turned into Three, so there's no way for him to be aware of that when he's just travelling about freely. This was eventually explained away by the [[ "Season 6B"]] fan-theory-turned-official-explanation, which has the Time Lords' Celestial Intervention Agency scooping up the Doctor after his trial and forcing him to run missions for them, culminating in his regeneration and the beginning of Season 7.²[[/folder]]²²[[folder:New Series]]²* [[Recap/DoctorWhoS27E8FathersDay "Father's Day"]] sums it up pretty well. Pete Tyler being alive created a paradox, and anything else would make it worse. So yeah, interacting with one's past self makes sparks, and a paradox fills the air with gas fumes. Sort of. Not really at all, but if that helps just think of it like that.²* [[Recap/DoctorWhoS27E13ThePartingOfTheWays "The Parting of the Ways"]]: The Doctor says that the TARDIS protects itself from paradox. Whenever and wherever the TARDIS lands, the events that led it to go there, and led to the world it's in once it's there, become unalterable.²* "[[Recap/DoctorWhoS28E4TheGirlInTheFireplace The Girl in the Fireplace"]]: The {{time portal}}s that include the titular fireplace are so unusual that the Doctor has to make up new terms to describe them, and once the characters use them, the TARDIS can't enter the same region.²* The [[TropeNamer Trope Naming]] episode, [[Recap/DoctorWhoS29E10Blink "Blink"]], actually involves a mostly-internally-consistent StableTimeLoop. It's the show as a ''whole'' that fulfills the trope by being inconsistent.²* When the Tenth and Fifth Doctors meet up during Children in Need Special [[Recap/DoctorWho2007CiNSTimeCrash "Time Crash"]], Ten is in shocked disbelief to be seeing his former self, then goes on to use memories he picked up as Five meeting his future self to defuse the situation. When the illogic of this is brought up (not to mention the violation of multi-Doctor meet-up {{Canon}} established from the other three times this has happened), ''both'' Doctors mumble something about "Timey Wimey" and move on.²* [[Recap/DoctorWhoS30E2TheFiresOfPompeii "The Fires of Pompeii"]]: Donna asks why the Doctor will thwart aliens but not stop a particular historical catastrophe, and the Doctor replies that some points in time are fixed, while others are in flux. Him being a Time Lord allows him to perceive which is which and act accordingly, even against his nobler instincts. It's revealed in the climax that the reason he can't change the catastrophe is because [[YouAlreadyChangedThePast he's the one responsible for making it happen]].²* More about fixed points in time in ''Series/TheSarahJaneAdventures''. Sarah Jane's parents dying is a fixed point in time because she has seen it, remembers it, and knows it happened. Changing that would be [[TheEndoftheWorldAsWeKnowIt bad]].²* River Song. Her encounters with the Doctor are not synchronized at all. The journal checking seen in [[Recap/DoctorWhoS30E8SilenceInTheLibrary "Silence in the Library"]] and [[Recap/DoctorWhoS32E1TheImpossibleAstronaut "The Impossible Astronaut"]], as well as the "spotter's guide" from [[Recap/DoctorWhoS31E4TheTimeOfAngels "The Time of Angels"]], seem to indicate that she meets the Doctor in a random order, but when River's [[TimeTravelTenseTrouble past/future]] with the Doctor is brought up in Series 6, it's implied that they're traveling in practically reverse order — the [[spoiler:kiss]] at the end of [[Recap/DoctorWhoS32E2DayOfTheMoon "Day of the Moon"]] is implied to be River's last ''because'' it is the Doctor's first. This is despite the fact that they clearly ''aren't'' meeting in reverse order, since the Doctor meets her [[spoiler:months after she is born]] four times after he "first" meets her. She also doesn't recognize Rory in [[Recap/DoctorWhoS31E13TheBigBang "The Big Bang"]], despite seeming to know him already in [[Recap/DoctorWhoS32E1TheImpossibleAstronaut "The Impossible Astronaut"]], which is ''earlier'' in her timeline (though that was most likely due to [[spoiler:him having been [[RetGone erased from history]]]] at that point). In short, their meetings are mostly random, and any given time the two meet up may be synchronized, but — overall — they're moving in opposite directions.²-->'''River:''' Rule 1.\²'''Amy:''' The Doctor lies.\²'''River:''' So do I. All the time. Have to. Spoilers.²* The Doctor tries to mess with a fixed point in [[Recap/DoctorWhoS30E16TheWatersOfMars "The Waters of Mars"]]. [[TearJerker It doesn't end well.]] He explicitly states that there are fixed points in history which cannot be changed. Those points in history greatly affect the future and allow for time to follow a more or less consistent path. Anything he does to try and change history will simply cause the event to occur regardless. Even the Daleks are shown to respect this. The Doctor, feeling frisky, tries to alter one. Events remind him that even a Time Lord has limits.²* In [[Recap/DoctorWhoS30E17E18TheEndOfTime "The End of Time"]], the Doctor attempts to explain a Time Lock to Wilfred.²-->'''The Doctor:''' They're sealed inside of a bubble. It's not a bubble, but just think of a bubble.²* The [[NegativeSpaceWedgie cracks in time]] running rampant in Series 5 did so much damage that it's implied they broke ''time itself''. They are capable of {{retgon|e}}ing anything they consume, as shown in [[Recap/DoctorWhoS31E5FleshAndStone "Flesh and Stone"]]. However, in the same story, River tells the Doctor she'll see him again when the Pandorica opens. In those events, shown in [[Recap/DoctorWhoS31E12ThePandoricaOpens "The Pandorica Opens"]]/[[Recap/DoctorWhoS31E5FleshAndStone "Flesh and Stone"]], the cracks are sealed, even though River, in her own future, was able to see and interact with one, therefore being in the cracked universe, even though she had already witnessed the events that lead to the cracks being repaired. Basically, they outright broke time travel logic.²* A "turnpoint moment" is mentioned in [[Recap/DoctorWhoS31E9ColdBlood "Cold Blood"]]; the Doctor describes it as an "opportunity" here, stating that the rocky peace negotiations going on in this episode could really change the future to an outcome where humans and Silurians live in peace ever after. The eventual results are... mixed. ²* The whole of [[Recap/DoctorWhoS31E13TheBigBang "The Big Bang"]] is built on this trope: [[spoiler:The Doctor saving the day and escaping from the Pandorica is built on an ontological paradox — he shows up already escaped to enlist Auton!Rory in effecting his escape]]. The Doctor even explains that this would normally cause drastic side effects for the universe, but luckily [[spoiler:the universe had already been destroyed]]. The affair was referred to in a [[Recap/DoctorWhoS32E1TheImpossibleAstronaut later episode]]:²-->'''River:''' He's interacting with his own past. It could rip a hole in the Universe.\²'''Amy:''' Yes, but he's done it before!\²'''Rory:''' [[spoiler:And in fairness the Universe ''did'' blow up.]]²* [[Recap/DoctorWho2010CSAChristmasCarol "A Christmas Carol"]] also features this heavily. [[spoiler:It starts with the Doctor showing a video Kazran made as a boy to the older him — and travelling back in time to when he made it, leaving Kazran watching a video of the Doctor interfering in his past as his own memories change to reflect that this had happened. Kazran then has memories of not growing up while being visited by the Doctor, and memories of being visited by the Doctor. He then ponders how he's never met the Doctor before tonight, but seems to have known him all his life. It ends with the Doctor showing the [[FutureMeScaresMe younger Kazran the man he turns into]], leading to the older one having a change of heart partly brought on by realizing that he's turned into his father, and partly by him being retroactively altered by the experience of being horrified at seeing his older self as a boy.]] ''Oof.'' It's implied that this method is far from perfect, as [[spoiler:Kazran's own mind-reading controls no longer recognize him, despite the fact that they should logically have been programmed for the Kazran that existed in the current timeline]]. Who knows? It is a TimeyWimeyBall, after all.²** This is explained in the episode. [[spoiler:The controls don't recognize him because they were programmed by his father, and after all the changes the Doctor made, his father never gave him control.]]²* Just because the ''DW'' section for this trope needs to be larger, it's used extensively in [[Recap/DoctorWhoS32E10TheGirlWhoWaited "The Girl Who Waited"]]. The TARDIS crew happens upon the Two Streams health centre. They take people who have contracted a fatal disease and place them in the "fast" stream, symbolised by a red waterfall. They can live their whole life and age normally in only a day. Meanwhile, their loved ones are in the slow stream, symbolised by a green anchor, and can watch their lover/family/friend have a fruitful life. Unfortunately, it all goes wrong when [[spoiler:Amy gets trapped in the fast stream. Eventually Rory manages to break in to save her, but 39 years have passed, leaving his wife old and bitter. He can jump back in time to save younger Amy, but can only do so with older!Amy's help. However, she doesn't want to be re-written and stop existing. Eventually they decide to save both of them by breaking the laws of causality; at the last minute the Doctor reveals that this is actually a paradox and leaves Old!Amy behind to die.]] Though she won't really, because in a few minutes she'll never have existed.²* [[Recap/DoctorWhoS32E13TheWeddingOfRiverSong "The Wedding of River Song"]] finally shows what happens if you alter a fixed point too much. All of time collapses, happening at once. You'll have Holy Roman Emperor UsefulNotes/WinstonChurchill riding around on his personal mammoth while they discuss the political pressures caused by the War of the Roses, greet a Roman Centurion, and see a [[LizardFolk Silurian]] doctor for a check-up. Meanwhile, pterodactyls are considered pests and Charles Dickens appears on the news to talk about his new Christmas special. Only some people will be able to hang on to their memories of "correct" time. The date and the time will never ever change. They are the date and the time of when the fixed point was supposed to happen. If allowed to continue, time itself will break, causing [[Recap/DoctorWhoS30E13JourneysEnd THE DESTRUCTION! OF REALITY! ITSELF!]]²* [[Recap/DoctorWho50thASTheDayOfTheDoctor "The Day of the Doctor"]]:²** The Eleventh Doctor is brought by [[spoiler:the Moment]] to meet the Tenth Doctor and the War Doctor (an incarnation between the Eighth and the Ninth Doctors, whom the others don't recognize as a Doctor due to... questionable actions). The War Doctor gets annoyed at the childish things his future selves say, including "timey-wimey" (as stated by the Eleventh Doctor). The embarrassed Tenth Doctor (who invented the phrase) [[BlatantLies says he has no idea where the Eleventh Doctor picked this up]].²** This episode also features time travel that dives into TheMultiverse theory when the Doctor changes an event in his own timeline (namely, the end of the Time War). There's a hint that this was how it always was afterwards due to the lack of negative consequences, and the fact that the universe perceived that time was unchanged (and the fact that once the episode is done, the two earlier Doctors won't remember). The other super-timey-wimey moment is that it took 13 different Doctors to make it work, including one that could only exist thanks to the events of the NEXT episode.²* [[Recap/DoctorWhoS34E7KillTheMoon "Kill the Moon"]] gives us an inversion on fixed points. Where a fixed point is a historical event that ''must'' happen, what we get in "Kill the Moon" is a crossroads, in which a single decision by humanity could change its history for eons to come. Even the Doctor claims to be unable to see the ultimate outcome and, because he feels this is humanity's choice, refuses to help, leaving Clara to solve the crisis.²* [[Recap/DoctorWhoS38E3Orphan55 "Orphan 55"]]: The Doctor's speech at the end about how [[spoiler:Orphan 55 is only one potential future for the Earth out of many]] relies on the Multiverse theory of time travel (every action creates a new timeline). Apart from the Tenth Doctor's explanation about the existence of parallel universes in [[Recap/DoctorWhoS28E12ArmyOfGhosts "Army of Ghosts"]], the show has ''never'' explicitly used this in all of its great timey-wimey history. It is possible, however, [[spoiler:that the Doctor was just saying that in order to cheer up her companions...]] (In addition, [[spoiler:the Doctor has encountered various conflicting and incompatible futures of humanity and the Earth,]] so this wouldn't exactly be the first time the show's done something like this.)²[[/folder]]²²[[folder:Expanded Universe]]²* The novels have an equally insane version, in which the Eighth Doctor (infected by [[TheVirus Faction Paradox biodata]]) ends up interfering slightly in the life of the Third Doctor, [[TemporalParadox leading to him regenerating on the wrong planet and being infected by Faction Paradox biodata]]. Of course, Literature/FactionParadox live and breathe this trope (as well as TemporalParadox) at the best of times. It's their [[PlanetOfHats hat]].²** On a more minor note, the Eighth Doctor also had three encounters with the Master despite his enemy being essentially dead at this point in the Doctor's life; during ''The Eight Doctors'', the Eighth saves the Third Doctor from an attack by the "Delgado" Master and spoke with the "Ainley" Master during the Sixth Doctor's trial, and ''Legacy of the Daleks'' saw him contribute to the events that caused the "Delgado" Master to be reduced to his burnt form. ²* The ''Literature/DoctorWhoNewAdventures'' had the concept that Time itself was a sentient entity who consciously fixed various timeline hiccups resulting from time travel with the Doctor as her champion.²* "Goth Opera", the first novel in the ''Literature/DoctorWhoMissingAdventures'', sees the Fifth Doctor facing a vampire lord in the 1990s who was accidentally brought to Earth by the Seventh Doctor in "Blood Harvest" in the 1930s. ²* ''AudioPlay/BigFinishDoctorWho'' has used this trope from early on.²** The 8th Doctor saving Charlotte Pollard from her death on the R101 causes a paradox, meaning anti-time starts infecting the Universe, causing odd things with history to happen during the Eighth Doctor audio stories leading up to "Zagreus". For example, Shakespeare has disappeared from history (which is explained in "[[Recap/BigFinishDoctorWho032TheTimeOfTheDaleks The Time of the Daleks]]") and Benjamin Franklin was President. Finally, in "[[Recap/BigFinishDoctorWho033Neverland Neverland]]", Charley helps save the Web of Time, meaning that the paradox and anti-time infection become part of the Web of Time. To complicate matters further, she later travels with the ''Sixth'' Doctor, even though she shouldn't be alive at his point in the Doctor's timestream.²** "[[Recap/BigFinishDoctorWho030SeasonsOfFear Seasons of Fear]]" has a very complicated Timey-Wimey Ball. The Doctor goes back in time to stop Sebastian Grayle, because Grayle prompted him in an artificial alternate timeline in which the Doctor hadn't even met him yet. Grayle then develops a hatred for him, eventually leading to him creating an artificial alternate timeline. To make this more complicated, it isn't clear how the Doctor met this Sebastian Grayle, as in 1806, [[spoiler:Grayle goes back in time and is killed by his past self]]. ²** "[[Recap/BigFinishDoctorWhoTLSFDBE1TheFoeFromTheFuture The Foe from the Future]]" features the Doctor giving various speeches about how the human brain just isn't physically capable of understanding the necessary complex temporal equations to explain why Jalnik's original plan of mass evacuation into the past is a bad idea, or how [[spoiler:Shibac can exist in the past even after his future has been erased]].²** "[[Recap/BigFinishDoctorWho046FlipFlop Flip-Flop]]" features a very odd version of this trope, with an apparently StableTimeLoop between two alternate timelines (one where the assassination of a planetary leader caused a war and another where she survived and pursued a policy of excessive appeasement), meaning there are two Seventh Doctor and Mel(s) who create one history by erasing another.²** "[[Recap/BigFinishDoctorWho040Jubilee Jubilee]]" involves the Doctor going into a parallel universe, but about a hundred years after it has diverged, with the Sixth Doctor experiencing FlashSideways and remembering being in a Dalek war a hundred years ago. Then the Doctor ends up accidentally causing the war a hundred years ago in the past that created that [[ForWantOfANail divergent timeline]], only it's actually happening then as well, because the Doctor's presence caused the timelines to merge, somehow. Then the Dalek survivor of the war a century ago [[TalkingTheMonsterToDeath talks the invasion fleet into suicide]], which unmakes the alternate universe and resets the timeline. It makes a lot more emotional sense than it makes logical sense (a sentence which just summarizes the whole darn show). ²** "[[Recap/BigFinishDoctorWhoNEDASRavenous3E2CompanionPiece Companion Piece]]" features River Song (a character who was only born 'after' the Time War) being captured by the Nine, a pre-Time War Time Lord, and forced to tell him about the Doctor's companions as the Nine decides to try and create a "collection" of every person the Doctor has ever travelled with. At one point, the Nine attempts to capture Bliss, a student who met and travelled with the Eighth Doctor ''during'' the Time War, but as the War hasn't happened "yet" as far as the wider universe is concerned, Bliss is a computer sciences student rather than a student of temporal theory and has absolutely no idea who the Doctor is (River avoids giving the Nine details of the future by explaining that Bliss was subject to a "complex temporal event" before she met the Doctor). ²* ''Literature/PastDoctorAdventures''²** ''Asylum'' starts off with Nyssa being picked up by a young Fourth Doctor, long after she had departed from the ''Fifth'' Doctor. Both she and he seem embarrassed about the situation and the Doctor specifically asks her not to tell him any details that could lead to a paradox, euphemistically describing it as "saving it for a nice surprise". She then discovers that the research she was doing on Roger Bacon has inexplicably changed into research on Isambard Kingdom-Brunel, forcing them to head back in time to Bacon's time to discover what caused the future to change. When the crisis concludes, the Doctor nonchalantly claims that he can travel with the younger Nyssa knowing that she will be all right, but both privately recognise that the Doctor's knowledge of Nyssa's future means that he will have to take care of her when she becomes his companion later. ²** ''Festival of Death'' starts with the Fourth Doctor, Romana and K9 arriving on the G-Lock, a space station existing on a breach into hyperspace, where they find that everyone present already recognises them, to the extent that they are arrested and accused of the recent attack by the station supervisor and find that they have already arranged for someone to come and let them out. Over the course of the novel, they have to go back in time three more times to ensure that they have met everyone they have to meet; at one point there are two different versions of the Doctor and Romana on the station at once, the second versions taking care to avoid meeting their younger selves. ²** ''Imperial Moon'' opens with the Fifth Doctor revealing the existence of the time safe, a safe where the user puts things in later for prior use; the Doctor describes it as a permitted temporal paradox that should only be used for something truly important. In this case, the safe provides the Doctor and Turlough with a diary about a British expedition to the Moon in 1878, prompting the Doctor to go back to the date indicated in the diary and join the expedition after he reads about him and Turlough meeting the expedition (the Doctor refusing to read any further to avoid the risk of being tempted to change his future).²** ''Warmonger'' is a sequel and prequel to "[[Recap/DoctorWhoS13E5TheBrainOfMorbius The Brain of Morbius]]"; the Fifth Doctor is forced to go to Karn to get medical help for Peri after a serious injury and ends up becoming caught up in Morbius's original military campaign, to the extent that the Doctor must form a military alliance of various old enemies, such as the Sontarans, Cybermen and Ogrons, to oppose Morbius's forces and thus ensure his defeat and subsequent near-execution. ²[[/folder]]²²[[folder:Fan Fiction]]²* ''{{FanFic/Gemini}},'' this trope is [[InvokedTrope invoked]] so as to [[DefiedTrope defy]] StableTimeLoop: It’s easier for the Daleks to change the past than it is for anybody else, so the military is trying to create super-soldiers that can change the timeline as easily as the Daleks can.²* In ''[[ The Choice]]'', the Tenth Doctor, Rose and Mickey are shocked to find the Chameleon-Arched Ninth Doctor working in a garage in the Powell Estate, the Doctor leaving Rose to keep an eye on his human past self while he and Mickey try to retrace that period of the Ninth's life to work out what happened. They eventually determine that [[spoiler:after leaving Rose the first time, the Ninth Doctor visited various places to try and make subtle changes to history, which led to him being infected by a rare Dalek poison that can only infect Time Lords under specific circumstances, requiring him to use the Arch to escape being killed by the infection. In order to cure his past self, the Tenth Doctor has to inject himself with an antidote at three different points in his timestream, requiring him to not only inject himself and the human Ninth, but at one point he has to make contact with the ''Eighth'' Doctor and give him the antidote when he misses a chance to inject a younger Ninth from a point before he was exposed to the toxin in the first place]]. ²* In “[[ Déjà vu]]” (written before “[[Recap/DoctorWho50thASTheDayOfTheDoctor The Day of the Doctor]]”), a Time Lord plot draws the first ten Doctors to a pre-Time War Gallifrey, even though characters note that, from Gallifrey’s perspective, the Ninth and Tenth Doctors don’t exist ‘yet’ and shouldn’t have been drawn to a point in their past. The same plot sees [[spoiler:a Time Lord renegade using the first five Doctors to power a machine that can manipulate Gallifrey’s past, with some changes taking place even as the present remains the same, such as a timeline where the Second and Third Doctors died in the confrontation with Omega]]. ²* In the ''Series/DoctorWho''/''Series/{{Forever}}'' crossover "[[ Forever Doctors]]", the Eighth Doctor finds a pair of Daleks from the Time War in New York, even though (from the Doctor’s perspective) the War hasn’t started yet. Later on, Lucie Miller meets with an agent of UNIT and is shown pictures of the various Doctors to identify which Doctor she's with, with the image of the Eighth Doctor being the more weathered Doctor of his relative future. ²* Paul Gadzikowski’s ‘The Father’ trilogy sees the Fifth and Eighth Doctors meet the Time Lord who would become the Doctor’s father before he’s even ‘conceived’ the Doctor, the Doctor subsequently arranging for his infant self to receive a good childhood. “[[ Transformations]]” sees the Fifth Doctor take [[Series/StarTrekTheOriginalSeries Admiral Kirk and others]] back in time to investigate Saavik’s origin after she’s identified as half-Time Lord (and hence the Doctor’s half-sister), “[[ One Child Born]]” ends with the Doctor leaving his infant self to be raised by [[Series/LoisAndClark Lois and Clark]] so that he gets a suitable moral upbringing, and “[[ Posterity]]” has the Eighth Doctor learn that his human DNA came from [[Series/BuffyTheVampireSlayer Buffy Summers]] (making her [[RelatedInTheAdaptation the Doctor's mother]]).²* In "[[ Where is Hannah Montana?]]", when [[Series/HannahMontana Miley Stewart and Lilly Truscott]] end up travelling with the Tenth Doctor]], at one point Robbie Ray has to assure Miley that she should keep travelling with the Doctor because a recent perusal of his wedding album has revealed that Miley was the singer at her parents' wedding, which they haven't been to yet. When Miley finally asks the Doctor to take her to visit her mother, [[spoiler:they find themselves facing an older version of a man they recently confronted who talks about how the Doctor, Miley and Lilly will contribute to his future defeat, again giving them advance notice of an event they haven't experienced yet]]. ²* In ''[[ Protect and Survive]]'', the Seventh Doctor learns that his insane Thirteenth incarnation has changed human history through a particularly convoluted plan that culminates in nuclear war in 1962 in order to prevent the Doctor from ever having human companions, as the older Doctor now believes that those companions made him too weak to stop the Time War. The two incarnations confront each other in 1936, the earliest date when history diverged from the timeline the Seventh knew, but the Thirteenth states that he's gone back and forth through time so often that there's no way for the Seventh to find the 'earliest' point in his timeline when he started his current plan and cut him off that way. The Thirteenth confidently predicts that, once his changes to the timeline have settled, the 'new' Doctor will find a paradox-proof box of instructions he sent to his past self's TARDIS so that the new Doctor can set up that same chain of events as he will now be ruthless enough to do, but [[spoiler:the Seventh Doctor stops this plan by committing suicide. As the Doctor 'now' killed himself before the Thirteenth could go through with any part of his plan, the original timeline is restored, and when the Seventh Doctor discovers the instructions left by the insane Thirteenth, they only leave him all the more committed to the idea that he cannot allow himself to become the version of himself capable of such insanity]]. ²* Various examples in ''Fanfic/TwilightStorm'', including; ²** Bella meets UNIT in 2010, and they have records of her time with the Doctor from a trip she will make to the Doctor's original UNIT colleagues in the 1970s in her personal future. ²** The Tenth Doctor takes Bella to visit his old friend Steven Taylor, but Steven has already met Bella when circumstances in her future led to her going back in time to help the First Doctor and Steven with a crisis.²** In ''The Day Of the Doctor'', Bella is thrown to meet the Eleventh Doctor who talks of their relationship as something long in the past and has to reconcile that with the Doctor she knows in the present. ²** In ''The Funeral'', Bella meets the Eleventh Doctor at a point after she parted with the Tenth Doctor but before his involvement in ''Day of the Doctor''. ²* ''Fanfic/TheRoadToShalka'' is a Whoniverse fic, so it had to happen. Specifically, it happens in ''Skypigs'', where the villain is trying to MakeWrongWhatOnceWentRight, two Doctors (with their respective entourages) stop him together and we meet the companion's [[DeceasedParentsAreTheBest long-dead parents]]. Before they were a couple.²* ''[[ Time v3.0]]'' does its best to encompass all the chaotic mess that was the Time War, uses this trope up, down, and sideways.²[[/folder]]²----


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