The physics, the theology, and the institutions the screenplay assumes you will infer.
Per Aspera takes place in a future humanity that has spread across the solar system and beyond via bulk dimension transit — a technology that routes travel through a parallel dimension ("the bulk") rather than through normal space. The technology works, but its mechanism is imperfectly understood. The bulk dimension is inhabited.
The year is not specified, though references suggest late 2600s (Chen "reassigned" in 2637; "translated" dates visible in the colony).
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The Aetherons are entities native to the bulk dimension — another layer of reality orthogonal to normal space. They are not hostile in a conventional sense; they do not malice, plan, or communicate. They feed on the gap between desire and reality: the space between what a consciousness wants and what it has.
This is not metaphorical. The gap is a measurable energetic phenomenon. When the Aetherons feed on a human, the human "translates" — their form is transformed into bulk-dimension geometry, consumed.
Visual language of the Aetherons: - Surfaces that recede infinitely into directions that don't exist - Angles that refuse to resolve no matter how long you look - Light bends toward them rather than away — they swallow illumination - Where they touch matter, it doesn't break — it TRANSFORMS (dimensional scarring) - Almost beautiful. Almost mathematical. But wrong.
Established in: Mars breach (Act I), described more fully in Subjects Ward (Act II), transit through the bulk (Act II), colony feeding event (Act III), Threshold (Act V)
Introduced: Subjects Ward, through Cailee's data analysis Developed: Nai's breakthrough (Act III) — empirically confirmed Stated explicitly: Brother Dorin — "The gap. Your discovery. We called it prayer."
The Aetherons are attracted to the energetic signature of DESIRE — the measurable distance between what a consciousness wants and what it currently has. Fear of death, longing for the absent, hope for the future — all create "gap."
Corollary: Presence closes the gap. A person fully anchored in the present moment — wanting nothing the present doesn't offer — generates no gap. The Aetherons cannot feed on someone who is fully present. This is why Elias's presence stabilizes patients: he anchors them in the now. This is why Cailee dies with no gap inside her at the end — she's completely present, wanting nothing more.
Anti-mechanism: Prayer and desire — The Shepherdites build their theology around aspiration, longing, the gap. They are, unknowingly or knowingly, maximizing their food value to the Aetherons.
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First established: The Mars breach Visual: Metal becoming something "simultaneously solid and liquid"; surfaces reflecting impossible angles; "dimensional scarring" — areas of reality permanently altered by Aetheron contact
Dimensional scarring occurs where Aetherons have been or where the membrane has thinned. The colony world has extensive scarring — crystal formations are its most visible form.
Crystal formations (developed in Act V): On Acheron, dimensional scarring has produced enormous crystal formations that hum with stored bulk-dimension resonance. They affect electronics, comms, and biological systems. They can detonate. Justin's in-utero exposure (his mother was involved in bulk research) makes him particularly susceptible to crystal resonance.
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The boundary between normal space and the bulk dimension. Thin places in the membrane allow contact between dimensions. The Ngan family spent twelve years learning to "invite" rather than "fight" the membrane.
Physical effects: - The bulk drive "hums" — a sound felt in teeth and bones - Membrane contact causes a "thickness" in the air - Unshielded membrane contact causes phasing in biological matter - Sustained contact transforms the subject — eventual "translation"
Phasing is the physical symptom of membrane exposure in biological subjects. Progressive stages: 1. A limb (usually hand) flickers between solid and translucent 2. Phase events are episodic at first, becoming chronic 3. Full-body phasing (the entire form alternating) 4. Translation — the form becomes geometry, the human is consumed
Monitoring: Phase variance is measurable on standard medical equipment (though the waveforms are "wrong," syncopated against heartbeats).
Emotional correlation (the gap mechanism): Desire and longing intensify phase events. Presence and groundedness reduce them.
The Threshold on Acheron is a place where the membrane has worn thin enough to see through to the bulk dimension. It is a naturally occurring phenomenon, not a machine. Crystal formations around it store dimensional resonance. Vex has spent years approaching it; the Shepherdites have claimed it as sacred.
When Vex activates the resonance amplifier at the Threshold, the membrane tears fully, allowing dozens/hundreds of Aetherons to pour through — triggering the massacre.
The Threshold's collapse destabilizes Acheron's dimensional integrity on a planetary scale, eventually forming a black hole as the planet is consumed.
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The Ngan family's project: a controlled method for opening the membrane. First successful test — or rather, catastrophic failure that produced the breach. The math required "inviting" the membrane rather than fighting it (Cailee's key insight, age 12).
Visual: The bulk drive facility dominates the horizon from every sightline in the Ngan family quarters and Cailee's room. Everything in their lives oriented toward that building.
Europa Facility has a working one-way bulk drive for transit to the colony world (Kepler-442b). Standard transit. This is how Cailee and Elias reach the colony.
The transit sequence: Entering the bulk dimension strips the traveler of normal spatial reference. The same formation appears in multiple positions simultaneously. Sound bleeds: memories are "read." The Aetherons notice travelers and examine them for gaps. Elias's hand holding Cailee's — their combined groundedness makes the gap "complicated, contaminated by having." The Aetherons move on.
Vex's research vessel (Act V). Contains stasis technology, bulk dimension research equipment, transit capabilities. After the Threshold massacre, it is destroyed in the planetary collapse.
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Funded by Vex Herschel. Conducts membrane research through human subject exposure. "Volunteers" — a word with asterisks. Mortality rate: 44% over four years. The Europa Ethics Board nominally oversees the program; in practice, Vex controls the oversight by controlling the infrastructure.
The facility has: - A subjects ward (the phase-affected patients) - A membrane interface lab (where subjects undergo exposure) - A memorial corridor (plaques for the dead) - Vex's office (Jupiter-facing window)
The Shepherdite presence at Europa: Geometric symbols on facility paperwork. On certain doors. They have institutional backing — tolerated because powerful people tolerate them.
Governs the military tribunal in Act IV. Its jurisdiction over bulk dimension activities is apparently broad. The tribunal runs at 90%+ conviction rates for mass-casualty charges. Evidence that implicates classified military contracts is ruled "outside scope." The tribunal is a processing mechanism, not an adjudication one.
The Detained Persons Act, Section 14.7: Upon conviction, custody of minor children transfers to the United Systems Child Services Authority. The trigger is "delivery" — specifically defined as "the complete expulsion or extraction of a product of conception from its mother."
The mechanical womb gap: Babies in mechanical wombs are categorized as "ongoing gestation" — different paperwork, different protocols. The custody pipeline is triggered by delivery, not extraction. This is the gap Cailee exploits.
The oversight body that threatens an audit of the Europa facility in Act II. Its audit is the mechanism Vex uses to push Cailee toward the colony — he frames transit as "continuing the work" rather than "fleeing the consequences."
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The dominant religion/ideology of the screenplay's world. Founded on the premise that the Aetherons are divine shepherds who "translate" worthy humans into a higher existence. The gap (longing, desire, aspiration) is sacred — it is the connection between the human and the divine, the channel through which "translation" occurs.
The core text: The geometric symbol — angular, recursive, "somehow wrong to look at directly." Appears on the Mars Shepherdite pamphlet (used as a coaster by Cailee, Act I), on Shepherdite clothing and scarification, on colony architecture.
What Dorin admits: Some Shepherdites know the Aetherons simply feed. They chose the story anyway because the alternative is meaninglessness.
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Origin: Cailee's maternal grandmother. Analog. Old. Leather band too large — Cailee tightens it to the last hole and it still slips.
What it means: - Carrying time meant for someone older, gone - Ari's interpretation: if it ticks, someone is still paying attention - After Ari: carries her blood. The cracked face. Still ticking. - In the colony: marks Cailee as a heretic in a world without time - The watch as the opposite of the Shepherdite theology — presence, measurement, the specific tick of passing moments
Object history: - Grandmother → Lian → Cailee → Ari (Act I) → back to Cailee (bloodstained, cracked, Act I) → worn throughout Acts II–III → lost with the original arm (between Acts III and V) - The pale strip where it sat: erased after 17 years of stasis
Payoff: The chronometer. Left for Justin in the pod. Not the same object but the same function: "Keep counting. Someone has to."
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Cailee's equations are a visual externalization of her inner life. They orbit her as a halo, respond to her emotional state, and interact with her environment.
Color states: - Blue-white: healthy, working, confident - Amber: her parents' notation — warmer, degraded resolution, the previous generation - Red: danger, distress, mathematical emergency - Dark: moral failure, overwhelming grief, loss of self
Behavioral rules: - They scatter when Ari approaches (first time equations react to a stranger) - They retreat from the observation garden (unnecessary; not called) - They go dark in the lab after Chen dies (the math "refusing to associate") - They vanish in the crystal chamber (stripped by dimensional interference) - They return during stasis recovery (Act V) — but are lost again permanently in the Threshold vicinity
Development: - Act I: Eager companions, almost alive, "leaning toward her hands" - Act II: Weaponized targeting systems; scanning the arrival bay - Act III (colony): Muted, disoriented — the world isn't mathematical, it's narrative - Act IV (tribunal): Dim, barely present; the institution is "opaque to mathematics" - Act V: Return in stasis but permanently absent at the Threshold
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Three generational uses of the same image:
1. Lian and Cailee at the Mars escape pod: Lian's palm against the viewport from outside; Cailee's palm from inside. Mirrored. The inheritance visible in the identical gesture.
2. Cailee at the mechanical womb: Her palm against the transparent casing of the womb where Justin floats unnamed. She is now the mother on the outside; her child is the vessel.
3. Cailee and Justin at the Erebus escape pod: Her remaining hand against the viewport; Justin's trembling hand rising to meet it from inside. Three generations.
Meaning: Every generation of the Ngan family expresses separation and love through glass. The gesture says "I see you" and "I cannot hold you" simultaneously.
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Five instances of the escape-pod dynamic (one person sent forward, one stays behind):
1. Mars: David and Lian send Cailee forward; they stay with the Aetherons 2. Europa: Cailee and Elias transit — both go, both escape. The only exception. 3. Colony: Vex's ship — eight seats from 140 patients. Cailee chooses who to carry. 4. Tribunal: The extraction — Cailee "sends" Justin into the mechanical womb; she stays as the disaster 5. Erebus: Cailee sends Justin forward in the last pod; she stays with the debris field
The pattern completes in Act V: she becomes her parents. The child she was on Mars is now Justin; she is Lian on the other side of the glass.
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Three facilities whose physical design expresses a worldview:
Mars Research Station: Family-occupied. Plants on Lian's side. Photographs of people. Two windows both framing the bulk drive facility — the family's shared orientation. A dining table with three chairs. A room where the untouched food and the equations exist in the same frame.
Europa Facility: Angular. Obsessive. No curves. No organic shapes. No plants. No photographs. The corridors at the shortest path between points. "Architecture as weapon." This is what the mind looks like when it has been given an entire building to inhabit.
The Colony World: Deliberately holed. Every structure has a void at its center — doorways framing absence, windows opening on walls. "The buildings aren't broken — they're designed this way. Every void is a sentence about desire." The Shepherdite theology made architectural. A civilization built to cultivate longing.
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First location. A research outpost on Mars's surface. The bulk drive facility dominates the horizon. Inside: the Ngan family quarters, Cailee's room, the observation deck, the observation garden (the only green dome on Mars — struggling tomatoes, artificial light).
The Aetheron breach destroys the station. Mars remains, red and indifferent.
Carved into Jupiter's moon. Ice world — the surface visible through viewports as bone-white and fractured. The interior: angular, cold, efficient. Jupiter fills the office window like a captured god — "ancient, banded, indifferent."
The facility has: a subjects ward, membrane interface lab, memorial corridor, Vex's Jupiter-facing office, main laboratory, bulk transit chamber.
A planet with a purple-tinged sky, two moons (one large, one small — "like a parent and child"), and a permanent atmospheric scar from an old feeding event. The Shepherdites have governed it for generations.
Crystal formations are visible in its deeper territories. The scar pulses periodically. The colony has 847,000 inhabitants. After the massacre: designated lost.
Notable sites: underground clinic (unmarked, below ground, behind a false wall), the memorial wall (gilded, public, gold lettering), the atmospheric scar (visible, knelt-toward).
A planet in the Kepler system (or nearby) with extensive dimensional scarring — crystal formations emerging from the crust. The Shepherdite deep territories are here. The Threshold is here.
The Consortium facility is on or near Acheron's surface — a rival faction controlling crystal extraction routes.
After the Threshold activation, Acheron's dimensional integrity collapses. A black hole forms. The planet is consumed.
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Vex's research vessel. Seventeen years in the future (from Act IV). It has: - Stasis pods (where Cailee spent seventeen years) - Archives (where Justin discovers the personnel records) - A secondary geological analysis station (Yuki's work) - A medical bay (the mechanical womb) - An observation alcove (where Cailee and Justin have the night-before-the-Threshold conversation) - An escape pod bay (with one working pod at the end) - A flight deck / bridge
The Erebus is destroyed by the Acheron planetary collapse.
A rival faction controlling the primary extraction route for the crystals needed for the Threshold operation. Vex's mission involves taking their facility. They are not developed — they're obstacles, providing the first collaborative mission between Cailee and Justin.
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| When | What | How | |------|------|-----| | Act I, Beat 1 | Bulk drive exists. Mars research station. Departure in 7 days. | Set dressing, Cailee's equations, countdown | | Act I, Beat 1 | Shepherdites exist. | The pamphlet, used as a coaster | | Act I, Beat 7 | Aetherons exist. They transform matter. They're drawn to some people (Shepherdites welcome them). | The breach sequence | | Act I, Beat 8 | Dimensional scarring — matter transformed by proximity | The corridor, the changed metal | | Act II, Beat 11 | Europa Facility. Controlled membrane contact. 44% mortality. | Vex's briefing | | Act II, Beat 13 | Phase patients. Phasing described in detail. | The subjects ward | | Act II, Beat 13 | Elias's presence reduces phase variance 23%. | Cailee's data | | Act II, Beat 22 | Nai's data — the gap mechanism (desire correlates with phasing) | Cailee's discovery | | Act II, Beat 20 | The bulk dimension transit. Aetherons examine travelers. Voices heard. | The transit sequence | | Act III, Beat 21 | The colony world. No clocks. Architecture of absence. "Cultivate the Gap." | The long tracking shot | | Act III, Beat 23 | Dorin articulates the Shepherdite theology — and its lie | The clinic conversation | | Act III, Beat 23 | "The gap. Your discovery. We called it prayer." | Dorin | | Act III, Beat 26 | The feeding event. Scale of Aetheron hunger. 847,000. | The massacre sequence | | Act IV | Mechanical womb. Ongoing gestation. The custody pipeline. | Patel, Maria | | Act V | Stasis. Seventeen years. Justin. | Opening of Act V | | Act V | Acheron. Crystal formations. The Threshold. | The briefing room | | Act V | Crystals can detonate. Justin's in-utero exposure makes him susceptible. | The crystal chamber | | Act V | Vex's resonance amplifier. The Threshold. The Aetherons pass through en masse. | The Threshold sequence | | Act V | Complete planetary collapse. Black hole. | The escape sequence |
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