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Recursion

Blake Crouch

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Similar in characterization + relationships

These books are ranked using the characterization + relationships labels extracted for Recursion. Books rank higher when they are close on every selected axis.

Characterization labels used: detective protagonist, neuroscientist protagonist, brilliant scientist, grieving father, traumatized cop, well-intentioned inventor, wealthy benefactor, mysterious billionaire, obsessive investigator, idealistic researcher, emotionally driven characters, genius inventor

Relationships labels used: romantic relationship, family grief, mother-daughter bond, parent-child loss, partnership, collaboration, power imbalance, mentor-like funding relationship, love story, marriage

This does not mean the books share the same plot, setting, quality, or difficulty. It means their characterization + relationships embeddings are close.

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Axiomatic

Greg Egan · 1997

A hard-SF short story collection where each tale stress-tests identity, ethics, and consciousness through speculative science.

Why this is here

Characterization labels: rational protagonists · educated characters · morally conflicted · highly analytical · outsider figures · investigators · detectives · scientists · cybernetic subjects · self-questioning · damaged protagonists

Relationships labels: romance · marriage · family · intimacy · parent-child · twins · love and revenge · power imbalance · dependency · betrayal · community pressure · interpersonal alienation

Semantic match: ranked by characterization + relationships

Distance: 0.1431

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Observer

Robert Lanza, Nancy Kress · 2023

A disgraced neurosurgeon joins a secret Caribbean research project that may let minds alter reality itself.

Why this is here

Characterization labels: neurosurgeon · scientist · Nobel laureate · physicist · tech entrepreneur · skeptical protagonist · relatable protagonist · strong-willed protagonist · career setback · socially targeted woman · supportive sibling · disabled child caregiver · charismatic mentor · genius uncle · romantic tension · complex characters · well-developed characters

Relationships labels: sibling support · family obligation · romance · workplace harassment · power imbalance · mentor-protege · estranged family · parent-child care · found family · professional rivalry

Semantic match: ranked by characterization + relationships

Distance: 0.1448

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Lightbreakers

Aja Gabel · 2025

A grieving physicist and his artist wife are drawn into a secret time-travel project that forces them to face memory, love, and loss.

Why this is here

Characterization labels: artist protagonist · physicist protagonist · grieving father · grieving ex-wife · eccentric billionaire · flawed characters · relatable characters · character-driven

Relationships labels: marriage in crisis · ex-wife · former lover · parent-child bond · family grief · rekindled past relationship · romantic strain · shared loss · complicated couple

Semantic match: ranked by characterization + relationships

Distance: 0.1452

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Simulacron 3

Daniel F. Galouye · 1999

A corporate simulation designer starts doubting reality itself after a death and a string of impossible disappearances.

Why this is here

Characterization labels: investigator protagonist · corporate employee · scientist inventor · corporate executive · female love interest · paranoid protagonist · logical protagonist

Relationships labels: mentor-protege · father-daughter · corporate hierarchy · romantic subplot · rivalry · betrayal · power struggle · dependency

Semantic match: ranked by characterization + relationships

Distance: 0.1465

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Quantum Night

Robert J. Sawyer · 2016

A psychologist who can spot psychopaths uncovers a missing six months of his own life and a theory that could alter humanity.

Why this is here

Characterization labels: experimental psychologist · quantum physicist · professor · expert witness · utilitarian protagonist · flawed hero · psychopath · mentor figure · ex-girlfriend · scientist protagonists · academic characters · politically opinionated characters

Relationships labels: romantic reunion · ex-girlfriend · mentor-mentee · spouses · parent-child · friendship · collegial relationships · family conflict

Semantic match: ranked by characterization + relationships

Distance: 0.1487

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Under Story

Chloe Benjamin · 2026

A grieving scientist in Antarctica discovers a strange light that may open a door to second chances, love, and time itself.

Why this is here

Characterization labels: biologist · mycologist · physicist · scientist protagonist · grieving parent · divorced protagonist · messy protagonist · emotionally fractured · brilliant scientist · ambitious · flawed characters · found family

Relationships labels: ex-husband · divorced couple · marriage · parent-child · grieving parents · love story · second chance romance · family loss · friendships · found family · couple bond

Semantic match: ranked by characterization + relationships

Distance: 0.1504

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Earth

David Brin · 1991 · Earth

A near-future scientific accident and a worsening planet force rival factions to race to save Earth.

Why this is here

Characterization labels: scientist protagonist · brilliant scientist · ensemble characters · genius characters · activist characters · authoritarian antagonists · moral ambiguity

Relationships labels: family dynamics · grandmother-grandchild · romantic grief · team cooperation · power struggle · community conflict · human-nature relation

Semantic match: ranked by characterization + relationships

Distance: 0.1516

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Departure 37

Scott Carson · 2025

When pilots hear impossible warning calls and the U.S. skies go silent, a Maine teen and a Cold War scientist uncover a deadly secret.

Why this is here

Characterization labels: teen protagonist · scientist protagonist · government insider · DARPA employee · eccentric conspiracy theorist · military scientist · curious protagonist · smart protagonist · well-developed characters

Relationships labels: father-daughter · mother-child · friendship · romance subplot · affair · government authority · mentor-therapist · community ties · family grief · power imbalance · intergenerational link

Semantic match: ranked by characterization + relationships

Distance: 0.1524

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Einstein's Dreams

Alan Lightman · 1993

Einstein dreams alternate worlds where time behaves differently, turning physics questions into lyrical philosophical vignettes.

Why this is here

Characterization labels: young genius · patent clerk · scientist protagonist · nameless figures · ordinary people · observer protagonist · philosophical character types · human condition focus

Relationships labels: lovers · parents and children · friends · colleague relationship · community · isolation · family bonds · social dependence · shared loss · separation

Semantic match: ranked by characterization + relationships

Distance: 0.1525

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Victim Zero

Joshua Guess · 2013 · The Fall

A brilliant scientist tied to a cure project must survive the outbreak he helped unleash as the world collapses.

Why this is here

Characterization labels: scientist protagonist · geneticist protagonist · biologist protagonist · guilt-ridden hero · conflicted hero · methodical protagonist · intelligent protagonist · physically imposing protagonist · genius hero · marty stu (minority) · character-driven

Relationships labels: family loss · marriage · parenthood · community · ally group · rescued survivors · power imbalance · human exploitation · betrayal by authorities · friendship

Semantic match: ranked by characterization + relationships

Distance: 0.1529

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Interference

Brad Parks · 2020

A physicist vanishes after baffling seizures, pulling his wife and a detective into a race through science, money, and suspicion.

Why this is here

Characterization labels: physicist · professor · detective · widow · wife · billionaire · investor · assistant · postdoc · college student · retired cop · missing person · scientist protagonist · grieving detective · hearing impaired protagonist · sympathetic characters

Relationships labels: marriage · husband wife · family · sister bond · parent child · professional rivalry · employer employee · mentor mentee · investigator suspect · power imbalance

Semantic match: ranked by characterization + relationships

Distance: 0.1538

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Factoring Humanity

Robert J. Sawyer · 1998

A psychologist decoding alien signals and her AI-researching estranged husband confront a breakthrough that could remake humanity.

Why this is here

Characterization labels: scientist protagonists · psychologist protagonist · computer scientist · estranged couple · grieving parents · AI character · skeptical protagonist · rational characters

Relationships labels: estranged marriage · parent-child conflict · family fracture · parental accusation · professional partnership · divorce · grief

Semantic match: ranked by characterization + relationships

Distance: 0.1545

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