Notes and essays on product thinking, technology, learning, and the things I notice along the way.
Sep 30, 2026
In August, while sharing what I'd seen in Taiwan, I posted a photo of a Taiwanese job ad on Douyin and Xiaohongshu (two of China's biggest social apps). The comments filled up fast: "Prices in Taiwan are high too." "Converted to yuan, it's…
Jul 28, 2026
前几天，我看到一个短视频，讲的是中国一些乡镇学校里初中生的状况。评论区里有人说，这不就变成欧美青少年那样了吗。发这条评论的是一个中国用户。对他来说，欧美青少年似乎天然就意味着叛逆、不讲礼貌、不尊重老师，也没有规则感。
Jul 23, 2026
When DailyTrace 1.7 was nearly ready for release, I decided to make an English-language product video for it. The initial brief sounded simple: about a minute long, vertical, and able to explain what the app is, how it works, and how it…
Jul 18, 2026
In a previous post, I wrote that human judgment is what separates good vibe coding from mediocre vibe coding. One part of that is visual and editorial judgment. The idea felt a little abstract at the time. Then I spent more than ten rounds…
Jul 14, 2026
我最近读译著时，常有一种奇怪的经验：明明每个字都认识，却不知道这句话到底在说什么。起初我会本能地怀疑自己：是不是原书本来就难？是不是相关知识我还没掌握？是不是作者的思想太复杂，所以我一时没有读懂？但反复对照和拆解之后，我越来越觉得，很多时候问题并不在读者，也不一定在原书，而在译文。更准确地说，问题不只是译者有没有看懂外文，而是译文有没有用中文把意思说清楚。
Jul 9, 2026
When I talk about fitness, I am not only talking about muscle, body fat, or body shape. I am also talking about change: how it starts, how it continues, how to measure it, and how it gives a person a sense of control.