Sometimes I donāt 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 wouldāve always time-traveled, so the āchangesā 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 āfirst time around,ā 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 thatās why things canāt change. The time-travel mode chosen by the author for the story has locked them into this particular set of events, theyāll posit, and no matter what the characters do, they are literally unable change it.
I couldnāt disagree more!
A deterministic timeline is a trap, to be sureāto 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 fatherās memories.
So many analyses will claim thatās why Eren started the rumbling later in the storyāthat 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.
Butā¦no. Eren didnāt cause the rumbling because he saw himself do it in the future. Heās not the audience looking in on his own story (not in that way, at least). He isnāt figuring out that there is only one timeline, or that he was fated to cause so much death. He doesnāt even know that heās in a time loop where everything happens the same way every time!
No! Eren isnāt thinking about time travel physicsāwhich are made-up anyway. Eren isnāt thinking Well I HAVE to do it, since I saw it in Dadās memories. (Well, he probably does think that. As an excuse.)
Eren makes the choice to start the rumbling because thatās the choice he will always make regardless. That is who he is as a person. Itās a tragic flaw. Itās his character.
Iāve also been thinking about this because of Netflixās Darkāa time-travel show I heartily recommend. It too has a single timeline, in which many characters meet olderāand then youngerāversions of themselves, and they pass along information bootstrap-paradox style.
The first time I watched the show, I had this passing thoughtāhow 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. Theyāre not sacred, as some time-travel stories would have you believe. No, the single timeline never changes because the characters donāt change.
When Jonas, the protagonist of Dark, meets his older self, he canāt believe the shell of a man heās become. He canāt believe himself capable of saying the things heās saying, or doing the things he does. Heās not cataloguing the information passed to him so he can one day say it back to his younger selfāthatās stupid.
I was caught in a fallacy of bootstrap paradoxāhow did they know what to say? Whereād 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 isābut the day has arrived, and now heās on the other side of the door. Heās saying the words while his younger self is frozen in disbelief. Heās not replicating a conversation he remembersāthe words he says are the words he would say regardless. Thatās what heās always said, because thatās 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 thatās 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 werenāt 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 isnāt me, it was them. And they become those monsters anyway.
Itās only inevitable in the way a tragedy is inevitable.
Tragedies come about because of charactersā choices and flawsānot because the author or the timeline or fate is puppeteering them into these horrible ends. Romeo and Juliet arenāt doomed to die because the opening narration tells us they do. Theyāre doomed to die because theyāre young and impulsive and desperate to escape the cycle of hatred their families perpetuate. Itās a tragedy because theyāre scared teenagers and because the feud that drove them together, apart, and then to death was pointless.
It wasnāt inevitable. At any point, they couldāve put down the loaded gun (narratively speaking) and walked away. Romeo didnāt drink the poison because he heard the opening lines about him taking his life. Juliet didnāt watch the rest of the play and go alas, I have no choice, ātwas 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 weāre the audience, and weāve been told the ending, we feel trapped in it. Weāre 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 preventableābut weāre trapped watching it happen regardless.
So when Eren says he has no choice, heās not saying that because his vision of the future locked him into that course of action. Eren chooses to start the rumbling because thatās what Eren would do. He tells us himselfāhis 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 toāhe feels responsible, like he doesnāt have any other choice. He wants to destroy the timeline and his family. He wants to tear it all down, because he canāt let go of the people he loved and lost.
The future does not dictate Erenās and Jonasās actions. Erenās and Jonasās characters dictate the future.
Maybe seeing themselves do it in the future helped them give permission to themselves to start something so unthinkableābut make no mistake. It was always just them.
(And I donāt 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 doesnāt absolve them of their choices, either. These two always had another choice. They just chose causing the apocalypse every single time.
(Well, thatās not completely true. Dark and Attack on Titan have different endingsāJonas 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 choiceāone that actually ends the loop. Eren could have made a different choice, too. He just doesnāt.)
Dark sums it up better than I ever could: āMan can do what he wills, but he cannot will what he wills.ā 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.