Personal Blog
My PhD Grind (2): I Was No Longer Socially Anxious / 我的PhD Grind（2）：我不再极度的社交焦虑
The first year of my PhD in America: three moves in three months, a lonely first winter in Ithaca, the first real friend, and learning what healthy socializing should feel like — plus a spoiler alert: after two years of...
My PhD Grind (1): All the Friends Who Worked on Theory Have Switched to LLMs / 我的PhD Grind（1）：23年申phd时认识的那群朋友至此都转了LLM
By 2026, almost every friend I met while applying for PhDs in 2023 who worked on theory had switched to LLMs. On giving up proofs for code, quiet friendships that survive years of silence, and three short years of a...
The Age of AI: When Knowledge No Longer Makes Us Feel Safe / AI时代：当知识不再给我们带来安全感
In the age of agriculture, safety came from land; in the industrial age, from physical strength; before AI, from knowledge. Now knowledge suddenly feels cheap, and the old promise that knowledge changes destiny no longer feels like a stable truth....
After Leaving Research, I Finally Feel at Peace / 离开科研之后，我内心终于平静了
After more than seven years of research, I am finally turning my attention back to learning. Without an upper bound or a verifiable reward, research made it impossible for me to know when to stop; letting it go has brought...
Thoughts on the Layoffs / 裁员的感想
On the day of Meta layoffs. The office was nearly empty, people in WeChat groups were saying goodbye, and I started thinking about happiness deferred, the PhD that permanently changed my brain, and whether the bottom of the pyramid can...
The Dice of Fate / 命运的骰子
Continuing the conversation about reward from the previous post. On the gap between thinking and acting, the impossibility of forcing things, and learning to make decisions by vibe rather than by rule. If I get rejected, maybe fate is telling...
Some Recent Thoughts on RL and Life / 最近关于 RL 的生活杂想
Late at night, half asleep, I suddenly realized how to solve an interview problem I had failed the day before. I had not had this kind of Eureka moment for a long time. Reflections on research, learning, exams, and why...