Aporia (2023) Timeline Explained – Every Event in Order

Sophie agrees to use the machine because she is consumed by grief eight months after Malcolm's death and resentful that Darby Brinkley, the drunk driver who killed him, has faced no legal consequences. Jabir proposes using the device to kill Darby before the accident occurred, which would prevent Malcolm's death altogether. Although initially skeptical, Sophie's desperation to undo her loss overrides her doubts.

Foreshadowing: Earlier, Sophie expresses frustration that Darby has not been held accountable, hinting at her willingness to take matters into her own hands.

• sophie rice
• grief
• jabir karim
• time machine
• motivation

The machine sends a subatomic particle to a specific moment in the past. If the particle materializes inside a living being, it will kill that person instantly. The device was built by Malcolm and Jabir but was never powerful enough to achieve their original goal of killing a specific person from ten years earlier. Those present at the moment of activation retain memories of the original timeline.

Foreshadowing: Jabir mentions the machine was designed to target a specific individual, establishing the particle's lethal property.

• time travel
• machine
• particle
• jabir karim
• physics

Jabir deduces that those present at the moment of machine activation retain their memories from the previous timeline. Since Sophie and Jabir were both present when they activated the device to kill Darby, they remember the original reality where Malcolm died. Malcolm was not present during activation, so he has no memory of the timeline before the change.

Foreshadowing: The film establishes early on that only those involved in the activation experience the memory shift.

• memory
• timeline
• sophie
• jabir
• time travel consequences

When the trio used the machine to erase a con man who had deceived Kara in the past, it created a cascading timeline change that erased Sophie and Malcolm's daughter Riley from existence entirely. Instead, they now have a son who did not exist in the original timeline. The more they alter the past, the more unpredictable and irreversible the consequences become, demonstrating the butterfly effect of their interventions.

Foreshadowing: Earlier warnings about unpredictable consequences foreshadow this irreversible loss.

• riley
• timeline change
• consequences
• son
• daughter

Jabir activates the machine alone to erase the invention from history entirely, creating a timeline where the device was never built. He keeps his memories intact while Sophie and Malcolm's memories are altered to fit the new reality. The film ends with Sophie returning home from work and entering her house, leaving ambiguous whether the reset succeeded, failed, or created an entirely different outcome.

Foreshadowing: The agreement between the three characters to let Jabir handle the reset sets up this final moment.

• ending
• jabir
• reset
• timeline
• machine

Sophie learns that Kara, Darby's widow, and her daughter Aggie are destitute in the new timeline because Darby died in the accident that no longer happened. Aggie also has multiple sclerosis, adding to their struggles. Sophie feels guilty about the collateral damage caused by killing Darby and wants to help the Brinkleys as a way to mitigate the harm their actions have caused.

Foreshadowing: Sophie's growing guilt over the unintended consequences of timeline changes motivates her desire to make amends.

• kara brinkley
• aggie brinkley
• guilt
• help
• consequences

Each use of the machine creates unpredictable timeline changes that ripple forward in unexpected ways. Small changes lead to larger ones, and the characters cannot fully anticipate how their interventions will affect others. The film demonstrates this through the progression from killing Darby (which seemed simple) to helping the Brinkleys (which erased their daughter), showing that every alteration compounds the unpredictability of reality.

Foreshadowing: Jabir's early warning about the device's incomplete state hints at future complications.

• consequences
• timeline
• multiple uses
• changes
• unpredictability

Yes, Sophie eventually confides in Malcolm about what she and Jabir did, using the machine to kill Darby before the accident, which brought Malcolm back from the dead. After learning the truth, Malcolm, Sophie, and Jabir continue to refine the machine together while debating the ethical implications of further use. Malcolm participates in subsequent decisions about helping the Brinkleys and ultimately the reset plan.

Foreshadowing: Sophie's growing unease about the changes hints at her eventual decision to reveal the truth.

• malcolm
• sophie
• jabir
• truth
• knowledge

The ending shows Sophie returning home from work in what appears to be a new timeline where the She enters her house, machine never existed. but the film cuts to black before revealing what, or who, is inside. This ambiguity intentionally leaves questions unanswered: whether she finds Malcolm alive, whether her daughter exists, or whether the reset created an entirely different reality. The unresolved moment reinforces the film's themes about memory, loss, and the cost of tampering with time.

Foreshadowing: The earlier agreement that Sophie and Malcolm would have their memories altered foreshadows this uncertain outcome.

• ending
• ambiguity
• house
• sophie
• resolution

Jabir is the one who activates the machine for the final reset, making him the only person present at the moment of activation. Since the rule established earlier is that those present during activation retain their original memories, Jabir is the only one who remembers the previous timelines. This was intentional, he wanted to be the one to bear the burden of knowing what was lost while allowing Sophie and Malcolm to live without the weight of those memories.

Foreshadowing: The earlier rule about memory retention during activation establishes this outcome.

• jabir
• memories
• reset
• activation
• burden