Sida Liu

A Learner in the Complex World.


  • My Notes on ‘On the Nature of Time’

    My Notes on ‘On the Nature of Time’

    Stephen Wolfram recently posted an essay ‘On the Nature of Time’: https://writings.stephenwolfram.com/2024/10/on-the-nature-of-time/ There are five sections: (1) The Computational View of Time, (2) The Role of the Observer, (3) Multiple Threads of Time, (4) Time in the Ruliad, and (5) So What in the End Is Time? In order to understand it more thoroughly, I Continue reading

  • Global Competitiveness Theory: A New Approach to National Prosperity

    Global Competitiveness Theory: A New Approach to National Prosperity

    This concept of Global Competitiveness Theory is intended purely as a thought experiment, exploring alternative perspectives on national prosperity. It is not meant to serve as a practical policy proposal, nor should it be interpreted as a framework for real-world economic or political decision-making. The ideas presented here are speculative and designed to stimulate intellectual Continue reading

  • Reality+ by David Chalmers: A Chapter-by-Chapter Review

    Reality+ by David Chalmers: A Chapter-by-Chapter Review

    Introduction: When we think of philosophy, we might picture ancient philosophers disconnected from modern science. However, philosophy is the reconciliation of existing knowledge, and modern science and technology have brought us enormous amount of new knowledge, it’s now philosophers’ job to digest them. This is what the author, David Chalmers, calls ‘technophilosophy’: generating new questions Continue reading

  • Science on the Ground, Philosophy in the Air

    Science on the Ground, Philosophy in the Air

    Science can be thought of as firmly grounded—it operates close to the earth, where everything is tangible and can be directly observed or measured. It is constrained by the scientific method, focusing on precise exploration and concrete conclusions based on evidence. Philosophy, on the other hand, is like something floating above the ground, encompassing a Continue reading

  • An Analogy between Computing Components and Brain Structures

    An Analogy between Computing Components and Brain Structures

    In the technological landscape, an intriguing analogy unfolds between computer components and the human brain’s architecture. The CPUs, foundational to traditional computing systems, are analogous to the subcortical structures of the brain. These subcortical areas, evolutionarily older and essential for basic life functions, parallel the CPU in handling core computing tasks and basic operations. Advancing Continue reading

  • An Analogy between Literature and Mathematics? Reading ‘The Educated Imagination’

    An Analogy between Literature and Mathematics? Reading ‘The Educated Imagination’

    I heard about the book ‘The Educated Imagination’ in an interview with a math professor. She mentioned it because she likes the analogy that literature is just like math, both being languages of imagination. I like math but don’t understand literature, so I decided to explore this book to see if literature really is analogous Continue reading

  • Some Basics, Reading ‘Game Theory, A Very Short Introduction’

    Some Basics, Reading ‘Game Theory, A Very Short Introduction’

    I have begun learning about game theory and recently read Ken Binmore’s “Game Theory: A Very Short Introduction.” I would like to share some of my thoughts: Utility In game theory, there is a quantity called Utility. It represents the payoff for a player in a game. Von Neumann proposed a practical way to estimate Continue reading