History Main / OnlyOneMeAllowedRightNow

19th Sep '16 9:40:45 PM PaulA
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* In Creator/PiersAnthony's Literature/IncarnationsOfImmortality, the rule is, instead, that only three of a person is allowed to exist simultaneously. This mostly comes up in "''Bearing an Hourglass''," as the current Chronos is living concurrently with himself, but backwards, which means he is only allowed to travel to a particular point in his life once and once only.

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* In Creator/PiersAnthony's Literature/IncarnationsOfImmortality, the rule is, instead, that only three of a person is allowed to exist simultaneously. This mostly comes up in "''Bearing an Hourglass''," ''Literature/BearingAnHourglass'', as the current Chronos is living concurrently with himself, but backwards, which means he is only allowed to travel to a particular point in his life once and once only.
6th Aug '16 3:08:24 PM nombretomado
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* This applied to the DCUniverse before the first ComicBook/{{Crisis|on Infinite Earths}}. If a character traveled to a time where he or she already existed, it (the version not belonging to that time) would become an invisible, unheard, ineffectual phantom until it stepped out of that moment in time. Note that back then, even if characters were allowed to "meet themselves" [[HitlersTimeTravelExemptionAct history could ''not'' be changed,]] so it was pointless anyway.

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* This applied to the DCUniverse Franchise/DCUniverse before the first ComicBook/{{Crisis|on Infinite Earths}}. If a character traveled to a time where he or she already existed, it (the version not belonging to that time) would become an invisible, unheard, ineffectual phantom until it stepped out of that moment in time. Note that back then, even if characters were allowed to "meet themselves" [[HitlersTimeTravelExemptionAct history could ''not'' be changed,]] so it was pointless anyway.
16th Jul '16 4:12:04 PM ImperialScum
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* In ''Literature/AeonLegionLabyrinth'' when someone time travels, they become the 'original'. That original will override any other instance of that person when in the same time. This makes it impossible to meet yourself since you override your non time traveling self. It could be assumed that bringing another non time traveling version of yourself into the Edge of Time would also erase that instance since they did not time travel first.
8th Jul '16 7:06:21 AM ChronoLegion
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* An alternate reality example in ''Series/EarthFinalConflict''. When Liam and Augur accidentally end up in a parallel world, where humanity is fighting a losing war against the Taelons, they manage to flee back to their own reality with Maiya, a member of LaResistance and Lili's half-sister. On their world, though, Maiya starts experiencing an effect similar to the one in ''Series/StargateSG1'', cause by the presence of her double Isabel. They are told that they must "merge" into one in order to survive. This world's Lili also discovers that her missing father had another family, and that Isabel is her half-sister. When Isabel and Maiya come close, they merge into one body, but, unfortunately, Isabel's personality is gone, leaving only Maiya.
29th May '16 7:12:50 PM Gamermaster
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* ''{{Webcomic/Homestuck}}'': According to Aradia, a future self who travels back from a [[BadFuture doomed timeline]] is doomed to be destroyed by the universe sooner or later.

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* ''{{Webcomic/Homestuck}}'': ''Webcomic/{{Homestuck}}'': According to Aradia, a future self who travels back from a [[BadFuture doomed timeline]] is doomed to be destroyed by the universe sooner or later.



* In ''Webcomic/LsEmpire'' you can't time travel to a point where you were already alive (you will be sent back to your time of origin upon birth). Note that this only applies to mechanical time travel, magical time travel doesn't have any set rules.

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* In ''Webcomic/LsEmpire'' you can't time can only travel to a point where time before you were already alive born (you will be sent back to your time of origin upon birth). Note that this only applies to mechanical time travel, magical time travel doesn't have any set rules.
23rd Apr '16 9:57:09 PM Blazer
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* In the ''VideoGame/SuperRobotWarsZ'' plotline, this trope is the reason why [[Manga/MazingerZ the original Kouji Kabuto]] and the [[Anime/GetterRobo classic Getter Robo team]] can't team up with their ''Anime/ShinMazinger'' and ''Getter Robo Armageddon'' counterparts.
21st Jan '16 7:17:23 PM Pastykake
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In most time travel/cloning/alternate reality stories, one character can have multiple copies of themselves running around in the same time period. Some [[NeverTheSelvesShallMeet might have problems if those copies meet each other]]. Then there are these cases...

Only One Me Allowed Right Now is a case where the universe either flat out denies multiple copies of a character to exist in a same time period, or that either the character and the copies go crazy or the universe [[RealityBreakingParadox starts to break down]], or something bad happens.

Note that this is NOT NeverTheSelvesShallMeet. In that one, you can have millions of copies of a same character running around in the same universe without that much trouble, only they must not meet each other. In this case, even though there are only two copies and they are at opposite ends of the universe, the problem still happens. Not as tightly related to the OneSteveLimit as you might think.

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In most time travel/cloning/alternate reality stories, one character can have multiple copies of themselves him- or herself running around in the same time period. Some [[NeverTheSelvesShallMeet might have problems if those copies meet each other]]. Then there are these cases...

Only One Me Allowed Right Now is a case where the universe either the Universe flat out denies multiple copies of a character to exist in a same time period, or that either the character and the copies go crazy or crazy, the universe Universe [[RealityBreakingParadox starts to break down]], or something else bad happens.

Note that this is NOT NeverTheSelvesShallMeet. In that one, you can have millions of copies of a same character running around in the same universe without that much trouble, only they must not meet each other. In this case, even though there are only two copies and they are at opposite ends of the universe, Universe, the problem still happens. Not as tightly related to the OneSteveLimit as you might think.
25th Dec '15 6:43:01 PM nombretomado
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** Some early SilverAge Franchise/{{Superman}} stories (& one [[JusticeLeagueOfAmerica Justice League]] tale) used the idea that if Superman traveled within his own lifetime the earlier version would take his place in the present. So if Superman traveled to when he was Superbaby, Superbaby would appear in the present while Superman was in the past.

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** Some early SilverAge [[UsefulNotes/TheSilverAgeOfComicBooks Silver Age]] Franchise/{{Superman}} stories (& one [[JusticeLeagueOfAmerica Justice League]] tale) used the idea that if Superman traveled within his own lifetime the earlier version would take his place in the present. So if Superman traveled to when he was Superbaby, Superbaby would appear in the present while Superman was in the past.
19th Dec '15 12:47:25 PM Gamermaster
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* In ''Webcomic/LsEmpire'' you can't time travel to a point where you were already alive (you will be sent back to your time of origin upon birth). Note that this only applies to mechanical time travel, magical time travel doesn't any set rules.

to:

* In ''Webcomic/LsEmpire'' you can't time travel to a point where you were already alive (you will be sent back to your time of origin upon birth). Note that this only applies to mechanical time travel, magical time travel doesn't have any set rules.
16th Dec '15 10:41:02 AM JoePGuy
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** Normally, time travel doesn't exactly work in the Marvel Universe. If you travel into the past, you end up in the past of a similar but distinct universe (which you might not be able to distinguish at the time). For example, when Rachel Summers (daughter of Jean Grey and Scott Summers) traveled into the past, she ended up in the primary Marvel Universe instead of the offshoot where she was born (where Jean Grey was depowered instead of killed). She didn't realize she wasn't in her own timeline until she saw Jean Grey and Scott Summers had a son... she never had a brother.

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** Normally, time travel doesn't exactly work in the Marvel Universe. If you travel into the past, you end up in the past of a similar but distinct universe (which you might not be able to distinguish at the time). For example, when Rachel Summers (daughter of Jean Grey and Scott Summers) traveled into the past, she ended up in the primary Marvel Universe instead of the offshoot where she was born (where Jean Grey was depowered instead of killed). She didn't realize she wasn't in her own timeline until she saw Jean Grey (well, actually Madelyn Pryor, but [[CloningBlues close enough]]) and Scott Summers had a son... she never had a brother.
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