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Cover of Permutation City

Science Fiction · 1994 · PG-13

Permutation City

by Greg Egan

If you can simulate a universe, does it matter that it is a simulation?

For14+GenreScience FictionLength310 pagesRead time~8.5 hours

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Content snapshot

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What's in this book, at a glance — five things readers want to know before they start.

Violence

None

No violence

Language

None

No profanity

Sexual Content

Barely any

Brief sexual references

Substance Use

None

No substance use

Emotional Intensity

A lot

Profound philosophical horror about the nature of existence and simulation

What this book is about

Egan's 1994 hard SF novel explores the philosophical and physical consequences of being a digital copy of a human consciousness. Paul Durham creates a simulated universe that will outlast the real one. The hardest possible SF. For older teens and adults.

Notes for sensitive readers

Reader-flagged moments and themes that may affect your experience.

Philosophical horror

Identity questions

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