Preface 1 The Foundations for a New Kind of Science 2 The Crucial Experiment 3 The World of Simple Programs 4 Systems Based on Numbers 5 Two Dimensions and Beyond 6 Starting from Randomness 7 Mechanisms in Programs and Nature 8 Implications for Everyday Systems 9 Fundamental Physics 10 Processes of Perception and Analysis 11 The Notion of Computation 12 The Principle of Computational Equivalence Notes

A New Kind of Science: Twentieth Anniversary Collection

Celebrate 20 years of NKS with this collectible box set containing hardcover copies of A New Kind of Science, A Project to Find the Fundamental Theory of Physics and the commemorative Twenty Years of A New Kind of Science.

Writings & Livestreams

Live CEOing Ep 928: Language Design in Wolfram Language [Hierarchy of Entity Types] Physics Project Working Session | October 2, 2025 History of Science and Technology Q&A (October 1, 2025) Physics Project Working Session | October 1, 2025 Live CEOing Ep 927: 15.0 Design Review [Chemistry Repository and Paclet Functions] Physics Project Working Session | September 25, 2025 Storytelling with Stephen Wolfram: Q&A Physics Project Working Session | September 24, 2025 The Ruliology of Lambdas Physics Project Working Session | September 23, 2025 Stephen Wolfram Meets His AI Clone Physics Project Working Session | September 22, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 8 Physics Project Working Session | September 19, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 7 Physics Project Working Session | September 18, 2025 Live CEOing Ep 926: Language Design in Wolfram Language [Diagrammatic Computation] Physics Project Working Session | September 18, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 6 Physics Project Working Session | September 17, 2025
The Ruliology of Lambdas Writing | September 15, 2025 "I Have a Theory Too": The Challenge and Opportunity of Avocational Science Writing | August 14, 2025 New Features Everywhere: Launching Version 14.3 of Wolfram Language & Mathematica Writing | August 5, 2025 What If We Had Bigger Brains? Imagining Minds beyond Ours Writing | May 21, 2025 What Can We Learn about Engineering and Innovation from Half a Century of the Game of Life Cellular Automaton? Writing | March 18, 2025 Towards a Computational Formalization for Foundations of Medicine Writing | February 3, 2025 Launching Version 14.2 of Wolfram Language & Mathematica: Big Data Meets Computation & AI Writing | January 23, 2025 Who Can Understand the Proof? A Window on Formalized Mathematics Writing | January 9, 2025 Useful to the Point of Being Revolutionary: Introducing Wolfram Notebook Assistant Writing | December 9, 2024 Foundations of Biological Evolution: More Results & More Surprises Writing | December 5, 2024
Live CEOing Ep 928: Language Design in Wolfram Language [Hierarchy of Entity Types] Physics Project Working Session | October 2, 2025 History of Science and Technology Q&A (October 1, 2025) Physics Project Working Session | October 1, 2025 Live CEOing Ep 927: 15.0 Design Review [Chemistry Repository and Paclet Functions] Physics Project Working Session | September 25, 2025 Storytelling with Stephen Wolfram: Q&A Physics Project Working Session | September 24, 2025 The Ruliology of Lambdas Physics Project Working Session | September 23, 2025 Stephen Wolfram Meets His AI Clone Physics Project Working Session | September 22, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 8 Physics Project Working Session | September 19, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 7 Physics Project Working Session | September 18, 2025 Live CEOing Ep 926: Language Design in Wolfram Language [Diagrammatic Computation] Physics Project Working Session | September 18, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 6 Physics Project Working Session | September 17, 2025
The Ruliology of Lambdas NKS | September 15, 2025 What Can We Learn about Engineering and Innovation from Half a Century of the Game of Life Cellular Automaton? NKS | March 18, 2025 Towards a Computational Formalization for Foundations of Medicine NKS | February 3, 2025 Foundations of Biological Evolution: More Results & More Surprises NKS | December 5, 2024 Nestedly Recursive Functions NKS | September 27, 2024 What's Really Going On in Machine Learning? Some Minimal Models NKS | August 22, 2024 Ruliology of the "Forgotten" Code 10 NKS | June 1, 2024 Why Does Biological Evolution Work? A Minimal Model for Biological Evolution and Other Adaptive Processes NKS | May 3, 2024 Observer Theory NKS | December 11, 2023 Aggregation and Tiling as Multicomputational Processes NKS | November 3, 2023
Live CEOing Ep 928: Language Design in Wolfram Language [Hierarchy of Entity Types] Physics Project Working Session | October 2, 2025 History of Science and Technology Q&A (October 1, 2025) Physics Project Working Session | October 1, 2025 Live CEOing Ep 927: 15.0 Design Review [Chemistry Repository and Paclet Functions] Physics Project Working Session | September 25, 2025 Storytelling with Stephen Wolfram: Q&A Physics Project Working Session | September 24, 2025 The Ruliology of Lambdas Physics Project Working Session | September 23, 2025 Stephen Wolfram Meets His AI Clone Physics Project Working Session | September 22, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 8 Physics Project Working Session | September 19, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 7 Physics Project Working Session | September 18, 2025 Live CEOing Ep 926: Language Design in Wolfram Language [Diagrammatic Computation] Physics Project Working Session | September 18, 2025 Storytelling with Stephen Wolfram: Stories From My Life Part 6 Physics Project Working Session | September 17, 2025
The Ruliology of Lambdas Ruliology | September 15, 2025 What Can We Learn about Engineering and Innovation from Half a Century of the Game of Life Cellular Automaton? Ruliology | March 18, 2025 Who Can Understand the Proof? A Window on Formalized Mathematics Ruliology | January 9, 2025 Foundations of Biological Evolution: More Results & More Surprises Ruliology | December 5, 2024 Nestedly Recursive Functions Ruliology | September 27, 2024 What's Really Going On in Machine Learning? Some Minimal Models Ruliology | August 22, 2024 Ruliology of the "Forgotten" Code 10 Ruliology | June 1, 2024 Why Does Biological Evolution Work? A Minimal Model for Biological Evolution and Other Adaptive Processes Ruliology | May 3, 2024 Can AI Solve Science? Ruliology | March 5, 2024 Aggregation and Tiling as Multicomputational Processes Ruliology | November 3, 2023