Short reflections, observations, and fragments of thought — notes from a modern ronin exploring engineering, learning, and life.
Notes
Control is not tuned — it is modeled. — Dr. Jack Yeh In traditional motor control design, many engineers rely heavily on tuning. But tuning alone cannot reveal the true nature of a system. What truly defines a control system is not how it is tuned, but how accurately it is modeled.
Notes
A super individual is not created by AI itself. AI simply lowers the cost of iteration. A super individual is not defined by talent or tools, but by the ability to compound learning through high-frequency iteration. When learning becomes interactive, mistakes can be corrected multiple times a day, and
Notes
I’ve gradually realized something about happiness. Buying expensive things doesn’t really bring lasting satisfaction. For me now, the only thing that truly brings fulfillment is learning. Once I became accustomed to the discomfort and frustration that come with learning something difficult, I started to recognize them as signals
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Time does not automatically work in your favor. This is something I’ve come to understand through my own life and career. A sentence I often remind myself is: If you are not compounding, time is not your friend. Most people assume that time alone will bring progress. But time,
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During our trip to Kyoto and Osaka, I brought back not only memories, but also two gifts that I truly love. Both were gifts from my wife. One is a silver ring from the Japanese brand Lord Camelot, designed like a knight’s shield with a fleur-de-lis motif.
Notes
When I wore a samurai outfit in Japan, it didn’t feel like a costume. It felt aligned. People see the milestones: Four books in three years. A 30,000-member engineering community. NIW approval. But those who walk the path understand the solitude behind them. Deep inside, I’ve