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Geoffrey Chen

Where life, thought, and technology meet

  • Philosophy Notes
    • Philosophical Concepts
    • Western Philosophers
      • Kant
      • Hegel
      • Understanding Philosophy: Figures, Problems, and Ideas
    • Western Philosophy 50 Questions
    • Applied Philosophy
      • How Civilizations Remain Themselves: Series Overview and Reading Map
      • The Future Has No Representative
      • Who Maintains the World?
    • Everyday Philosophy
    • Sustenesis Theory
      • Sustenesis Daily Briefing
      • Sustenesis Research Brief
      • My Philosophy
      • AI Philosophy Observations
  • Mind & Psychology
    • How Everyday Psychology Takes Shape: Season One Overview
    • How Do We Read Other People? — How Everyday Psychology Takes Shape, Season Two
    • Everyday Psychology
  • Reading Notes
    • Daoist Notes
    • Bible Notes
    • Jung’s The Red Book Reading Notes
    • 100 Works of World Literature
    • Modern European History: From Revolution to World War
    • Other Reading Notes
    • Daily Fun with Maths, Physics and Chemistry
    • One Classical Chinese Sentence a Day
    • One Concept a Day
  • Reflections
    • Knowledge Life
    • How a Person Builds a World
    • Toy Memoir
  • AI
    • AI Technology Observations
    • How Digital Life Actually Works
    • Judgment in the Age of AI: 50 Everyday Questions
    • After AI Enters the Workflow
    • Choosing the Right AI Tool
    • Daily AI Observation
    • When Numbers Start Making Decisions — Season One Overview: Life on Either Side of the Threshold
    • AI and the Way People Work
  • Australian Life
    • How Australian Systems Work
    • Why Do Australians Say It This Way?
    • One English Sentence a Day
    • Australian Towns
  • Projects
  • Piano
    • Piano Sheet Music
    • A Listening Map of 50 Piano Works
    • 88 Pianists
    • Building a Piano Piece: From First Reading to Reliable Performance
    • Hearing Mathematics
    • Notes on Adult Piano Learning
    • Western Music
  • A Map of Ideas
  • Ask Geoff
  • Contact Me
  • About

Author: Geoffrey Chen

An IT expert passionate about reading, writing, photography, and piano.

Why Does a 7% Discount Rate Make Future Losses Smaller Today?

Discount Rates, 贴现率, Intergenerational Equity, Things That Cannot Be Priced Directly, When Numbers Start Making Decisions, 当数字开始做决定, 无法直接定价的东西, 代际公平

AI Technology Observations | 11 September 2026, 20:00

AI Agents, AI Infrastructure, AI Research, AI Technology, AI 基础设施, AI研究, AI技术, AI智能体, artificial intelligence, 人工智能

AI Philosophy Observations | Delegating Research Does Not Delegate Epistemic Responsibility

AI and Humanity, artificial intelligence, 维成论, Philosophy of AI, Sustenesis Theory, 人工智能, 人工智能哲学, 人工智能与人

Sustenesis Daily Briefing — 11 September 2026: China, Australia and the United States

Australia, China, 美国, Daily Observation, Sustenesis, United States, 中国, 澳洲

Why Do We Think Others Can See How Nervous We Are?

社会认知, 透明错觉, Illusion of Transparency, Social Cognition

Does Boredom Show That Life Is Meaningless?

Boredom, 生命意义, Meaning in Life, 无聊

Why Does a Dried Coffee Drop Leave a Dark Ring?

Coffee-ring Effect, Fluid Dynamics, 咖啡环效应, 流体力学

Latent Variables: How Can Unseen Structure Enter a Model?

Latent Variables, Models, 模型, 潜变量

Once a Megalitre of Water Has a Market Price, Can the Market Decide Where It Flows?

Murray–Darling Basin, Things That Cannot Be Priced Directly, Water Markets, When Numbers Start Making Decisions, 墨累-达令盆地, 当数字开始做决定, 无法直接定价的东西, 水市场

Why Does ‘Cheers’ Often Mean More Than a Toast in Australia?

Australian English, Everyday English, 日常英语, 澳洲英语

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