Permutation City

Science fiction

First published: 1994
Print length: 340 pagesHarperPrism, 1994

Description

Greg Egan’s Permutation City is a science-fiction novel set on a near-future Earth reshaped by climate change and global economics. Brain scans can generate conscious digital copies, while vast computing capacity is bought and sold through the QIPS Exchange. Some affluent or committed people create personal backups, yet these copies have no legal human rights. Intersecting characters include an artificial-life enthusiast trying to save her dying mother, a traumatized billionaire banker, and lovers inhabiting a timeless virtual world. Through artificial life, simulated reality, and quantum ontology, the novel asks whether human identity can become data and what digital immortality means when access to it remains economically unequal.

Reading profile

About this profile

Collected’s assessment, not reader ratings. Complexity runs from 1 (least demanding) to 5 (most demanding).

Writing: How much attention the sentences and language require.
Ideas: How much interpretation or abstract reasoning the book asks of you.
Structure: How much you need to keep track of speakers, timelines and connections.
Background knowledge: Prior knowledge needed to follow the book, beyond what it explains.
Emotional intensity: Emotional pressure, from gentle (1) to intense (5). Separate from difficulty.

Writing style

Dense · Direct · Technical

Pace

Moderate

Tone

Cerebral · Detached · Philosophical · Unsettling

Structure

Multiple timelines

Focus

Character · Ideas · World

Emotional intensity

3 / 5

Reading complexity

1–5 · higher means more demanding

Writing: 4 / 5
Ideas: 5 / 5
Structure: 4 / 5
Background knowledge: 3 / 5

Themes

IdentityInequalityKnowledge and truthLoveMortalityTechnology and society

About Greg Egan

Greg Egan is an Australian science fiction writer and former computer programmer whose fiction brings unusual rigor to questions that are often treated abstractly: what makes a mind continuous, how reality might be constituted, and what rational inquiry can reveal about both. He works chiefly in hard science fiction, using mathematics, quantum theory, computation, and biology not as technical decoration but as engines of narrative and philosophical pressure. Novels such as Permutation City and Diaspora imagine software-based consciousness in carefully developed virtual societies, while Schild’s Ladder turns speculative physics into the basis of a civilization-scale crisis. The stories in Axiomatic compress similar methods into sharper experiments involving altered bodies, engineered inheritance, parallel worlds, and unstable identities. Egan’s prose is typically dense, direct, and technical, with ideas and world-building at its center. What distinguishes the work is the seriousness with which it follows a premise through, testing intuitions about selfhood, embodiment, intelligence, and belief against the implications of science.

Diaspora Apple Books

Book details

For the print edition listed above.

Publisher: HarperPrism
Language: English
ISBN: 9780061054815

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