# Simulacron-3
**Domain:** Literature / Simulation / Synthetic Populations
**Doc Type:** Source-Work Node
**Maturity:** Developed
**Related:** [[wiki/World on a Wire (1973)|World on a Wire]], [[wiki/The Thirteenth Floor (1999)|The Thirteenth Floor]], [[wiki/World Simulation (Control Substrate)|World Simulation]]
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## Definition
_Simulacron-3_ is Daniel F. Galouye's 1964 novel about a computationally generated society populated by humanlike “identity units” that understand their artificial environment as reality. It is the literary source for Fassbinder's _World on a Wire_ and Rusnak's _The Thirteenth Floor_.
## Corpus Context
The novel makes computational social modeling reflexive. A synthetic population created as a model becomes a population of possible subjects, and the modeled world becomes capable of generating knowledge about the world above it.
Its identity units are crucial to [[articles/Uploading Is Imminent|Uploading Is Imminent]] because they approach continuity from the opposite direction of uploading. They are [[wiki/Continuant vs Native|natives]], not reconstructed biological predecessors. Uploading introduces continuants into a receiving world; the identity-unit lineage asks when that world begins producing citizens of its own.
## Historical Boundary
Galouye's novel predates Nick Bostrom's later simulation argument and should not be organized retrospectively around it. The relevant historical sequence is computational social simulation → artificial populations → reflexive ontology → later simulation-hypothesis discourse.
The contemporaneous Simulmatics Corporation provides a historically illuminating convergence around computer-modeled populations. No direct influence on Galouye is asserted without evidence.
## Key Insight
**A model of society becomes a constitutional problem when the modeled population contains subjects rather than variables alone.**
## Sources / Provenance
- Ed Halter, Criterion Collection, “World on a Wire: The Hall of Mirrors”: https://www.criterion.com/current/posts/2152-world-on-a-wire-the-hall-of-mirrors
- American Film Institute Catalog, _The Thirteenth Floor_: https://catalog.afi.com/Film/61742-THE-THIRTEENTH-FLOOR
- Jill Lepore, _If Then_, for the distinct history of Simulmatics: https://jlepore.scholars.harvard.edu/publications/if-then-how-simulmatics-corporation-invented-future
## See Also
[[wiki/Simulated World|Simulated World]], [[wiki/Layer-Relative Reality|Layer-Relative Reality]], [[wiki/Reconstructed Person|Reconstructed Person]], [[wiki/Rights|Rights]]