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The new homepage brings long-form posts and site updates into one chronological feed. Posts now live under /posts, while website and project progress lives under /updates. Chinese and English content remain independently authored and…
An engineer traces AI agent evolution from ChatGPT unit tests to end-to-end task delivery, exploring Agent Skills, learning strategy, and career risk.。 Read More
From Rakuten to Fast Retailing, an engineer reflects on career uncertainty, product quality, autonomy, and how organizations shape technical work. Read More
ver the past decade, I built travel sites, open-source tools, and blogs that failed—but each one taught me about products and helped me become a software engineer. Read More
From tinkering with Windows 98 at age nine to leaving accounting and becoming a software engineer, this is the story of my long journey back to code. Read More
A frontend engineer reflects on a decade in Japan, his transition from accounting, open-source work, and AI-assisted coding—and asks whether a creation still feels like his own when AI agents handle most of the implementation. Read More
Imagination—and our ability to make connections between things—may be one of the most powerful tools humans have ever had. But I have started to feel that this ability is being weakened by modern life.
I can see it in myself. My own capacity for imagination has clearly deteriorat…
Some articles are simply hard to read—not because we are not trying hard enough, but because they were never written to teach in the first place.
Sometimes, their purpose is merely to explain something briefly or to serve as a record. They skip the intermediate steps that would m…
If you want to improve quickly, one of the best things you can do is take on something genuinely difficult.
Hard problems expose the weaknesses you used to overlook—or simply chose to ignore.
More importantly, the feedback they give you is brutally honest. It shows you, as object…
Read more — 02. Do Hard Things to See Where You Really Stand
Happiness is not a goal to be reached. It is a state we can learn to remain in.
Naval Ravikant once said that if a person can maintain a peaceful state of mind, that itself is a form of happiness—what he calls peaceful happiness.
Peaceful happiness is the feeling of being fully p…
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