Overview
Complex systems are everywhere. Atoms form molecules, molecules form cells, cells form organisms, neurons form minds, and minds give rise to culture and technology. At each step, new patterns appear that cannot be understood from the lower-level description alone.
This book is about how to understand those patterns.
Hierarchy does not introduce a new theory or philosophical system. It draws together existing ideas from physics, biology, neuroscience, artificial intelligence, and complex systems, and uses them to make emergence easier to see and reason about.
What kind of book this is
This book focuses on a basic question: why is the world understandable using different levels of description at all? Why do explanations naturally organize themselves into levels, and why does no single level make the others unnecessary?
Along the way, it introduces new conceptual tools, such as mapping complexity, effective infinity, and the distinction between descriptive and constructive emergence, that help make sense of familiar tensions around reduction, explanation, and complexity.
For readers who have not spent much time thinking about these ideas, the aim is to offer a different way of seeing the world around us.
Who this is for
Hierarchy is written for curious readers who are comfortable with ideas but not interested in equations. No specialized background is assumed. The goal is not to simplify complexity away, but to make it more accessible and intuitive.
Scientists, engineers, philosophers, and general readers alike will recognize familiar ideas here, arranged into a framework that reveals how they fit together.
Project Status
The manuscript is essentially complete. It is available online and is currently seeking publication and feedback.
If you would like to offer feedback, please reach out directly to the author at
alyx.dubrow@gmail.com.
New Paper: The Problem of Persistence
A conceptual framework linking evolution and intelligence as two scale-dependent solutions
to the same constraint: maintaining deep organization in a changing universe.
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