Index – Xinyun Zhang

XinyunZettelkasten

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- 满分答卷，零分能力 — 当AI考满分却一题没做

Learning in public. Writing things down so I remember, sharing in case it helps you too.

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2026-05-08The Systems That Watch BackWhat happens when the thinking frameworks you build start revealing things about you that you didn't intend to see.2026-05-01You Can't Build Trust DirectlyTrust, clarity, and wisdom don't get built by aiming at them. They're the residue of something else — something engineers are uniquely positioned to understand.2026-04-24When Knowing Isn't EnoughFour moments from one week that revealed the gap between knowing a principle and living it — in engineering, in thinking, and in the decisions that actually matter.2026-04-12满分答卷，零分能力 — 当AI考满分却一题没做Berkeley RDI proved a bot can score 100% on top AI benchmarks without solving a single task. What Goodhart's Law means for how we evaluate AI agents. Written in Chinese.2026-04-11我如何用一台笔记本和一部手机，搭建了一个会自己进化的工作系统A software engineer's personal system architecture — five layers from knowledge to mobile access, with self-improving automation in between. Written in Chinese.2026-04-11The Config File That Knows Me Better Than My MomWhat happens when an engineer starts documenting herself instead of just her systems. On self-knowledge, automation, and why a terminal message at 1am felt warmer than a phone call.2026-04-03The System That Builds ItselfI tried to design a writing habit. The habit designed the writing instead.2024-11-10Zettelkasten MethodA personal knowledge management system using fleeting notes, literature notes, and permanent notes to build a network of interconnected ideas.

Who is Xinyun Zhang —

Computer Programmer