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* How did Okabe's first text about Kurisu change the world line? And even if it did, how did she live in the other world line? Did she even [[spoiler: die in the original timeline, or was it always fake]]?

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* How did Okabe's first text about Kurisu change the world line? And even if it did, how did she live in the other world line? Did she even [[spoiler: die in the original timeline, or was it always fake]]?fake]]?
** [[spoiler: Perhaps a StableTimeLoop ? Okabe's D-Mail triggered the events of the series, which ends with him saving Kurisu, thus she was alive after he sent it]]
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** In the anime, Okabe says that Reading Steiner isn't a power because everybody has it, his is just more sensitive, possibly due to the illness mentioned above. [[spoiler: Ruka, Kurisu, Feris, and even Mayuri]] all showed indications that they remembered the other world lines, whether it was from dreams or Okabe's encouragement.
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** He needed to get an IBN 5100, which were probably easier to get in 1975 than the 2000's. Other than that, his stops were for emotional reasons, [[spoiler: except for his final stop in 2010]].

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** He needed to get an IBN 5100, which were probably easier to get in 1975 than the 2000's. Other than that, his stops were for emotional reasons, [[spoiler: except for his final stop in 2010]].2010]].
* How did Okabe's first text about Kurisu change the world line? And even if it did, how did she live in the other world line? Did she even [[spoiler: die in the original timeline, or was it always fake]]?
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* In the original world line, why did John Titor travel to 1975 and 2000 before going to 2010? Just to write some books about time travel for Dr. Nakabachi to steal?

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* In the original world line, why did John Titor travel to 1975 and 2000 before going to 2010? Just to write some books about time travel for Dr. Nakabachi to steal?steal?
** He needed to get an IBN 5100, which were probably easier to get in 1975 than the 2000's. Other than that, his stops were for emotional reasons, [[spoiler: except for his final stop in 2010]].
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* Regarding [[spoiler:Ruka's]] ending in the VN, and why events don't happen as in other routes: [[spoiler: Why wasn't Mayuri killed by the Rounders in the Ruka ending? In that same vein, why was the lab not raided, and why wasn't Okabe picked up by SERN like the other timelines? I can understand them finally having no reason to kill Mayuri, but earlier in the route I believe Daru reported she had been killed. Perhaps they could've ransacked the lab at a later date, but why don't the apprehend Okabe? The last cg reveals he's been with Ruka for at least 9 months, and I'm pretty sure they're still in the alpha timeline.]]

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* Regarding [[spoiler:Ruka's]] ending in the VN, and why events don't happen as in other routes: [[spoiler: Why wasn't Mayuri killed by the Rounders in the Ruka ending? In that same vein, why was the lab not raided, and why wasn't Okabe picked up by SERN like the other timelines? I can understand them finally having no reason to kill Mayuri, but earlier in the route I believe Daru reported she had been killed. Perhaps they could've ransacked the lab at a later date, but why don't the apprehend Okabe? The last cg reveals he's been with Ruka for at least 9 months, and I'm pretty sure they're still in the alpha timeline.]]]]
* In the original world line, why did John Titor travel to 1975 and 2000 before going to 2010? Just to write some books about time travel for Dr. Nakabachi to steal?
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** As elaborated upon in one of the manga, Kurisu actually gives the paper to her father by leaving it on his desk, but ultimately SERN intercepts the paper.
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*** This is incorrect, actually. One of the manga shows that she drops the paper off at her father's office in order to make amends after being unable to meet with him. SERN then steals the paper. The manga also explains her psychology around the incident a bit.
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** It likely has to do with the circumstances under which Okabe was originally sick, and Mayuri prayed. The lambda time line makes it clear that the Y2K bug could have occured, so it's possible that at the time when Okabe first got sick, time was changed-of course, for that to be true, it's unclear as to why he would have been sick in the first place. Also, it's possible Steins;Gate is just a solipsistic existence, and Okabe is the observer.
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**Actually, it's rather simple. Okabe sending that first D-mail, changed the future from World War 3 to SERN's Dystopia. It changed Titor's origin, motivation for time traveling, as well as the creator of the time machine. Which made all the difference.
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* Regarding a certain character ending in the VN: [[spoiler: Why wasn't Mayuri killed by the Rounders in the Ruka ending? In that same vein, why was the lab not raided, and why wasn't Okabe picked up by SERN like the other timelines? I can understand them finally having no reason to kill Mayuri, but earlier in the route I believe Daru reported she had been killed. Perhaps they could've ransacked the lab at a later date, but why don't the apprehend Okabe? The last cg reveals he's been with Ruka for at least 9 months, and I'm pretty sure they're still in the alpha timeline.]]

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* Regarding a certain character [[spoiler:Ruka's]] ending in the VN: VN, and why events don't happen as in other routes: [[spoiler: Why wasn't Mayuri killed by the Rounders in the Ruka ending? In that same vein, why was the lab not raided, and why wasn't Okabe picked up by SERN like the other timelines? I can understand them finally having no reason to kill Mayuri, but earlier in the route I believe Daru reported she had been killed. Perhaps they could've ransacked the lab at a later date, but why don't the apprehend Okabe? The last cg reveals he's been with Ruka for at least 9 months, and I'm pretty sure they're still in the alpha timeline.]]
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Added a question


*** Should've went further through the game before asking. Some changes are so small that it doesn't even register on a six-digit-after-decimal basis.

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*** Should've went further through the game before asking. Some changes are so small that it doesn't even register on a six-digit-after-decimal basis.basis.
*Regarding a certain character ending in the VN: [[spoiler: Why wasn't Mayuri killed by the Rounders in the Ruka ending? In that same vein, why was the lab not raided, and why wasn't Okabe picked up by SERN like the other timelines? I can understand them finally having no reason to kill Mayuri, but earlier in the route I believe Daru reported she had been killed. Perhaps they could've ransacked the lab at a later date, but why don't the apprehend Okabe? The last cg reveals he's been with Ruka for at least 9 months, and I'm pretty sure they're still in the alpha timeline.]]
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Whoops; realized headscratcher was already there.


* If Kurisu Makise is the one [[spoiler:giving Dr. Nakabachi a paper containing information necessary to construct time machines, as revealed at the end of the series,]] why does she lecture Okabe in the beginning of the story on how creating a time machine is theoretically impossible?
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Added headscratcher on Kurisu\'s lecturing Okabe on why Time Machines are impossible
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Added headscratcher on Kurisu\'s lecturing Okabe on why Time Machines are impossible

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* If Kurisu Makise is the one [[spoiler:giving Dr. Nakabachi a paper containing information necessary to construct time machines, as revealed at the end of the series,]] why does she lecture Okabe in the beginning of the story on how creating a time machine is theoretically impossible?
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** D-mails can be ignored and have no effect, as [[spoiler:Moeka]] demonstrated. Besides...really, what effect, however small, was "Okarin is hentai" supposed to have, anyway?

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** D-mails can be ignored and have no effect, as [[spoiler:Moeka]] demonstrated. Besides...really, what effect, however small, was "Okarin is hentai" supposed to have, anyway?anyway?
*** Should've went further through the game before asking. Some changes are so small that it doesn't even register on a six-digit-after-decimal basis.
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* How come the worldline didn't change on the second d-mail (Daru: Okarin is hentai)? Granted, it's completely stupid in content and was designed to be ignored after viewing, but it should still have a tiny effect because having seen a stupid mail <> having not seen a stupid mail.

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* How come the worldline didn't change on the second d-mail (Daru: Okarin is hentai)? Granted, it's completely stupid in content and was designed to be ignored after viewing, but it should still have a tiny effect because having seen a stupid mail <> having not seen a stupid mail.mail.
** D-mails can be ignored and have no effect, as [[spoiler:Moeka]] demonstrated. Besides...really, what effect, however small, was "Okarin is hentai" supposed to have, anyway?
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** They don't. In the Beta World Line [[spoiler:Russia sets in motions the events for World War III]] and in the Alpha World Line [[spoiler:Kuriso never loses her research to her father and Russia doesn't obtain that information. Instead, SERN finds the secret to time travel.]]

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** They don't. In the Beta World Line [[spoiler:Russia sets in motions the events for World War III]] and in the Alpha World Line [[spoiler:Kuriso never loses her research to her father and Russia doesn't obtain that information. Instead, SERN finds the secret to time travel.]]]]
* How come the worldline didn't change on the second d-mail (Daru: Okarin is hentai)? Granted, it's completely stupid in content and was designed to be ignored after viewing, but it should still have a tiny effect because having seen a stupid mail <> having not seen a stupid mail.
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on timelines an divergence points

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*** It is a wrongful assumption, as proven by the fact that John Titor never visited 2000 in the alpha timeline. Because of the existence of time travel, changes in the future affect the past until a StableTimeLoop is achieved.
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* If Russia got the key to building a time machine why would SERN take over? Russia would be the one with a time machine, and they aren't members of SERN. What gives?

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* If Russia got the key to building a time machine why would SERN take over? Russia would be the one with a time machine, and they aren't members of SERN. What gives?gives?
** They don't. In the Beta World Line [[spoiler:Russia sets in motions the events for World War III]] and in the Alpha World Line [[spoiler:Kuriso never loses her research to her father and Russia doesn't obtain that information. Instead, SERN finds the secret to time travel.]]
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** Probably because it wasn't designed to display negative values.

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** Probably because it wasn't designed to display negative values.values.
*If Russia got the key to building a time machine why would SERN take over? Russia would be the one with a time machine, and they aren't members of SERN. What gives?
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another explanation for people having memories of different timelines

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** Kurisu, of all people, explained how this could happen in a world where the many-worlds theory stands (even though she kind of made it up on the spot so that Okabe [[spoiler: wouldn't be so sad about killing her.]])
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answer: divergence meter in faris end


* Why did [[spoiler:the 0 before the decimal point on the Divergence Meter go out in the Faris ending, where Okabe saves both Mayuri and Faris' father?]]

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* Why did [[spoiler:the 0 before the decimal point on the Divergence Meter go out in the Faris ending, where Okabe saves both Mayuri and Faris' father?]]father?]]
** Probably because it wasn't designed to display negative values.
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*** A much, much simpler explanation: Titor was coming from the ''future''. Therefore, even a change in 2010 could affect whether or not Titor arrived in 2000.
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*** This might be a wrongful assumption of mine, but I thought "Rintaro Okabe finds the corpse of Kurisu Makise in 2010" is the divergence point, i.e. there is no difference between the alpha and beta timelines before that point.
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* Why did [[spoiler:the 0 before the decimal point on the Divergence Meter go out in the Faris ending where Okabe saves both Mayuri and Faris' father?]]

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* Why did [[spoiler:the 0 before the decimal point on the Divergence Meter go out in the Faris ending ending, where Okabe saves both Mayuri and Faris' father?]]
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** Okabe jumped to the Alpha world line. It is possible that she does not have it there.

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** Okabe jumped to the Alpha world line. It is possible that she does not have it there.there.
* Why did [[spoiler:the 0 before the decimal point on the Divergence Meter go out in the Faris ending where Okabe saves both Mayuri and Faris' father?]]
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reverting my own changes because i got it backwards


*** Looks like there are two types of time travel: the ones that change the world line (D-mails and time leaps) and the ones that not (John Titor's material time travel). There were no John Titor in 2000 because in Beta timeline he traveled to 2010, not 2000. Let me develop the idea: material time travel should preserve world stability, it cannot change events that already happened, so if you decide to travel to past, this world should already contain traces of your intervention (which you don't made yet in your 'conscience timeline'). Remember John Titor and SERN Z-Program part 4. Tl;dr: the cause and effect are both in one world line, though effect may precede cause. But when you perform information time travel, it changes the world line: the cause lies in one, and effect in another. Thinking about what happens in the world line where you came from (or sent D-Mail) could lead to FridgeHorror (do you disappear? nothing happens? the whole world line disappears?). In the destination world line some unexplainable effects do appear (there were no event of sending of first D-Mail in the Beta timeline, only receiving).

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*** Looks like there are two types of time travel: the ones that change the world line (D-mails and time leaps) and the ones that not (John Titor's material time travel). There were no John Titor in 2000 because in Beta Alpha timeline he traveled to 2010, not 2000. Let me develop the idea: material time travel should preserve world stability, it cannot change events that already happened, so if you decide to travel to past, this world should already contain traces of your intervention (which you don't made yet in your 'conscience timeline'). Remember John Titor and SERN Z-Program part 4. Tl;dr: the cause and effect are both in one world line, though effect may precede cause. But when you perform information time travel, it changes the world line: the cause lies in one, and effect in another. Thinking about what happens in the world line where you came from (or sent D-Mail) could lead to FridgeHorror (do you disappear? nothing happens? the whole world line disappears?). In the destination world line some unexplainable effects do appear (there were no event of sending of first D-Mail in the Beta Alpha timeline, only receiving).



** Significant changes to the world line could be made only during key points (like invention of time machine in 2010); otherwise only minor changes will be caused. After SERN got time machine, they could choose between any of beta_0 .. beta_n timelines in further 'divergence points'.

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** Significant changes to the world line could be made only during key points (like invention of time machine in 2010); otherwise only minor changes will be caused. After SERN got time machine, they could choose between any of beta_0 .. beta_n alpha_0 .. alpha_n timelines in further 'divergence points'.



** Okabe jumped to the Beta world line. It is possible that she does not have it there.

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** Okabe jumped to the Beta Alpha world line. It is possible that she does not have it there.
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Fixed alpha/beta timeline confusion.


* Seeing this is a TimeTravel story, MindScrew like this is to be expected. [[spoiler: In the final episode what happened after The Other Okabe sent the D-Mail to Daru (as shown in episode 1) when Our Okabe faked the death of Kurisu? Our Okabe told The Other Okabe to live out the most important 3 weeks of his life without altering the past. However, how could the other Okabe accomplish that when he would have sent the D-Mail and cross the 1% Divergence to the Alpha world line.]]

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* Seeing this is a TimeTravel story, MindScrew like this is to be expected. [[spoiler: In the final episode what happened after The Other Okabe sent the D-Mail to Daru (as shown in episode 1) when Our Okabe faked the death of Kurisu? Our Okabe told The Other Okabe to live out the most important 3 weeks of his life without altering the past. However, how could the other Okabe accomplish that when he would have sent the D-Mail and cross the 1% Divergence to the Alpha Beta world line.]]



*** Looks like there are two types of time travel: the ones that change the world line (D-mails and time leaps) and the ones that not (John Titor's material time travel). There were no John Titor in 2000 because in alpha timeline he traveled to 2010, not 2000. Let me develop the idea: material time travel should preserve world stability, it cannot change events that already happened, so if you decide to travel to past, this world should already contain traces of your intervention (which you don't made yet in your 'conscience timeline'). Remember John Titor and SERN Z-Program part 4. Tl;dr: the cause and effect are both in one world line, though effect may precede cause. But when you perform information time travel, it changes the world line: the cause lies in one, and effect in another. Thinking about what happens in the world line where you came from (or sent D-Mail) could lead to FridgeHorror (do you disappear? nothing happens? the whole world line disappears?). In the destination world line some unexplainable effects do appear (there were no event of sending of first D-Mail in the alpha timeline, only receiving).

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*** Looks like there are two types of time travel: the ones that change the world line (D-mails and time leaps) and the ones that not (John Titor's material time travel). There were no John Titor in 2000 because in alpha Beta timeline he traveled to 2010, not 2000. Let me develop the idea: material time travel should preserve world stability, it cannot change events that already happened, so if you decide to travel to past, this world should already contain traces of your intervention (which you don't made yet in your 'conscience timeline'). Remember John Titor and SERN Z-Program part 4. Tl;dr: the cause and effect are both in one world line, though effect may precede cause. But when you perform information time travel, it changes the world line: the cause lies in one, and effect in another. Thinking about what happens in the world line where you came from (or sent D-Mail) could lead to FridgeHorror (do you disappear? nothing happens? the whole world line disappears?). In the destination world line some unexplainable effects do appear (there were no event of sending of first D-Mail in the alpha Beta timeline, only receiving).



** Significant changes to the world line could be made only during key points (like invention of time machine in 2010); otherwise only minor changes will be caused. After SERN got time machine, they could choose between any of alpha_0 .. alpha_n timelines in further 'divergence points'.

to:

** Significant changes to the world line could be made only during key points (like invention of time machine in 2010); otherwise only minor changes will be caused. After SERN got time machine, they could choose between any of alpha_0 .. alpha_n beta_0 .. beta_n timelines in further 'divergence points'.



** Okabe jumped to the Alpha world line. It is possible that she does not have it there.

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** Okabe jumped to the Alpha Beta world line. It is possible that she does not have it there.
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* If Kurisu [[spoiler:had a paper on a feasible time machine]] at the beginning of the series, why does she present such an air of total disbelief in time travel at the same point in the story?

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* If Kurisu [[spoiler:had a paper on a feasible time machine]] at the beginning of the series, why does she present such an air of total disbelief in time travel at the same point in the story?story?
** Okabe jumped to the Alpha world line. It is possible that she does not have it there.
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** Significant changes to the world line could be made only during key points (like invention of time machine in 2010); otherwise only minor changes will be caused. After SERN got time machine, they could choose between any of alpha_0 .. alpha_n timelines in further 'divergence points'.

to:

** Significant changes to the world line could be made only during key points (like invention of time machine in 2010); otherwise only minor changes will be caused. After SERN got time machine, they could choose between any of alpha_0 .. alpha_n timelines in further 'divergence points'.points'.
* If Kurisu [[spoiler:had a paper on a feasible time machine]] at the beginning of the series, why does she present such an air of total disbelief in time travel at the same point in the story?

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