Python Simulator of David Deutsch’s “Constructor Theory of Time”

In plain words

This Python library translates the mathematical formalism from David Deutsch and Chiara Marletto's "Constructor Theory of Time" paper into executable code. It includes implementations of core concepts like substrates, constructors, and task operators, along with a comprehensive test suite covering key results such as time-keeping substrates and irreversibility proofs. The tool is designed for researchers and developers seeking to explore or extend the paper's theoretical framework through practical computation.

written from the facts on this page · September 2026

From the sources

Contribute to gvelesandro/constructor-theory-simulator development by creating an account on GitHub.

A Python implementation of David Deutsch’s Constructor Theory framework, exposing key concepts—from simple Tasks and branching substrates to quantum-gravity and electromagnetism—entirely in code. Includes a “universal constructor” that can bootstrap itself from a list of Tasks, demonstrating self-replication and the power of Constructor Theory. “A demonstration of how constructor theory could be explored in code, not a high-precision physics engine. For the formal definitions, see David Deutsch and Chiara Marletto’s recent paper “ Constructor Theory of Time ” (May 13, 2025). git clone https://github.com/gvelesandro/constructor-theory-simulator.git cd constructor-theory-simulator Run Unit…from github.com

In the maker’s words, at launch

Hi HN, I turned the freshly published paper “The Constructor Theory of Time” by David Deutsch and Chiara Marletto (arXiv, 13 May 2025) into an executable Python library. What you’ll find • One-to-one translation of the paper’s formalism: Substrates, Attributes, Tasks, Constructors, and task-algebra operators •…

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