Sometimes I donât think people understand the point of deterministic time travel stories.
(For the purposes of this post, a deterministic universe refers to a story in which there is only one timeline. Even if time travel exists, the characters cannot go back and change things, so to speak. In a deterministic universe, they wouldâve always time-traveled, so the âchangesâ they attempted were already there, and nothing was altered. Think Interstellar, in which Cooper sends himself to NASA from the future.
By contrast, a branching timeline story would allow changes. Traveling through time assumes a new set of events and/or people who were not present the âfirst time around,â and so events can be altered, to the point of erasing established history. Think The Butterfly Effect, in which changing the smallest thing balloons out into an entire alternate reality.)
Whenever I hear people discuss a deterministic model of time travel, they seem to be under the impression that those characters are trapped by some nebulous fate or destiny, and thatâs why things canât change. The time-travel mode chosen by the author for the story has locked them into this particular set of events, theyâll posit, and no matter what the characters do, they are literally unable change it.
I couldnât disagree more!
A deterministic timeline is a trap, to be sureâto us, the audience. The characters are free to make whatever choices they want.
I started thinking about this because of Attack on Titan, how Eren sees a glimpse of himself causing the rumbling from his fatherâs memories.
So many analyses will claim thatâs why Eren started the rumbling later in the storyâthat from the moment he saw the future, he was somehow locked into that particular course of action. He was destined to kill millions whether he wanted to or not.
ButâŚno. Eren didnât cause the rumbling because he saw himself do it in the future. Heâs not the audience looking in on his own story (not in that way, at least). He isnât figuring out that there is only one timeline, or that he was fated to cause so much death. He doesnât even know that heâs in a time loop where everything happens the same way every time!
No! Eren isnât thinking about time travel physicsâwhich are made-up anyway. Eren isnât thinking Well I HAVE to do it, since I saw it in Dadâs memories. (Well, he probably does think that. As an excuse.)
Eren makes the choice to start the rumbling because thatâs the choice he will always make regardless. That is who he is as a person. Itâs a tragic flaw. Itâs his character.
Iâve also been thinking about this because of Netflixâs Darkâa time-travel show I heartily recommend. It too has a single timeline, in which many characters meet olderâand then youngerâversions of themselves, and they pass along information bootstrap-paradox style.
The first time I watched the show, I had this passing thoughtâhow did these characters remember exactly what their older selves said to them, so they could replicate the conversation when they were the older self?
It was a silly question, and the more I watched the show, the more I came to understand: The show is not about ~replicating~ or ~preserving~ events in the timeline. Theyâre not sacred, as some time-travel stories would have you believe. No, the single timeline never changes because the characters donât change.
When Jonas, the protagonist of Dark, meets his older self, he canât believe the shell of a man heâs become. He canât believe himself capable of saying the things heâs saying, or doing the things he does. Heâs not cataloguing the information passed to him so he can one day say it back to his younger selfâthatâs stupid.
I was caught in a fallacy of bootstrap paradoxâhow did they know what to say? Whereâd those words come from? Well, where all words come from.
Older Jonas is speaking from his heart. He too had believed fervently that he would never become the person he isâbut the day has arrived, and now heâs on the other side of the door. Heâs saying the words while his younger self is frozen in disbelief. Heâs not replicating a conversation he remembersâthe words he says are the words he would say regardless. Thatâs what heâs always said, because thatâs who he is.
This little quandary serves as a microcosm for explaining everything about deterministic time-travel. Both Eren and Jonas see themselves in the future doing horrible things. Becoming a version of themselves they would never dream of being.
As much as they tell themselves thatâs not me, I would never do that, and even vow to find a way to prevent that future, they both fail in that endeavor. They both experience profound hopelessness and loss, and they eventually give in to their desires and their hopelessness and become the worst, murderous versions of themselves.
And they both, funnily enough, tell themselves and others that it was just fate. It was how things had to be. Inevitable.
Eren always had the capacity for terrible violence. Jonas was always capable of manipulation and single-minded ruthlessness. Those are their character flaws. The sneak peeks they received of their futures werenât showing them what they had to do. They made those choices of their own free will. As much as they fought against what they would become, as much as they protested that isnât me, it was them. And they become those monsters anyway.
Itâs only inevitable in the way a tragedy is inevitable.
Tragedies come about because of charactersâ choices and flawsânot because the author or the timeline or fate is puppeteering them into these horrible ends. Romeo and Juliet arenât doomed to die because the opening narration tells us they do. Theyâre doomed to die because theyâre young and impulsive and desperate to escape the cycle of hatred their families perpetuate. Itâs a tragedy because theyâre scared teenagers and because the feud that drove them together, apart, and then to death was pointless.
It wasnât inevitable. At any point, they couldâve put down the loaded gun (narratively speaking) and walked away. Romeo didnât drink the poison because he heard the opening lines about him taking his life. Juliet didnât watch the rest of the play and go alas, I have no choice, âtwas foretold. O happy dagger! No! They both made those choices because of who they are as characters and the circumstances they were in.
But because weâre the audience, and weâve been told the ending, we feel trapped in it. Weâre the ones being granted a sneak peek into the future. We watch the story unfold with growing horror, because there are so many outs!
Romeo could have not killed Tybalt. Juliet could have entrusted her letter to a faster rider. They could have just not gotten married after eighteen hours. They could have spilled the secret and asked for help. This entire tragedy seems so preventableâbut weâre trapped watching it happen regardless.
So when Eren says he has no choice, heâs not saying that because his vision of the future locked him into that course of action. Eren chooses to start the rumbling because thatâs what Eren would do. He tells us himselfâhis disappointment in the outside world made him want to flatten everything and start anew.
Jonas too chooses to become the worst version of himself because he believes only he can make the world right. He has toâhe feels responsible, like he doesnât have any other choice. He wants to destroy the timeline and his family. He wants to tear it all down, because he canât let go of the people he loved and lost.
The future does not dictate Erenâs and Jonasâs actions. Erenâs and Jonasâs characters dictate the future.
Maybe seeing themselves do it in the future helped them give permission to themselves to start something so unthinkableâbut make no mistake. It was always just them.
(And I donât say this as a condemnation of either character. We have all had those impulses. Sometimes we just want to tear it all down.)
But getting that glimpse into the future doesnât absolve them of their choices, either. These two always had another choice. They just chose causing the apocalypse every single time.
(Well, thatâs not completely true. Dark and Attack on Titan have different endingsâJonas receives new information that changes his perspective on everything. He learns the truth about the time knot, and that growth and recognition is enough to help him finally make a different choiceâone that actually ends the loop. Eren could have made a different choice, too. He just doesnât.)
Dark sums it up better than I ever could: âMan can do what he wills, but he cannot will what he wills.â In other words: You can do whatever you want, but you cannot make yourself want to do something else. Time travel only highlights that struggle for us.