Notes
Notes are where I write with a looser hand than the case pages. Some come from real product use; some are short records of how I sort signal, uncertainty, and trade-offs in materials work.
First half marathon with Shokz OpenFit Pro
A field note from my first 21.1K: fit with glasses, comfort over time, awareness in noise, and why long use makes product details honest.
January 18 was the first time I ran 21.1K. I used Shokz OpenFit Pro and paid attention to the product only when the run forced me to.
Physics-trained materials thinking
A short engineering note on physics as a discipline for cleaner questions: signal, uncertainty, evidence, and the next decision.
I do not use physics to decorate materials work. I use it to decide what I can observe, what I can infer, and what I still do not know.
Substack
Longer writing lives on Substack.
For essays and letters that sit outside the tighter notes here, I keep the original language and rhythm on Substack.
写在冬至日落
一到周末，都会睡到十点多，看见窗外线条分明的光线，这是我每周最幸福的时刻。从六月底到圣诞周，我渐渐经历了社会角色的转变，回头翻相册，总想给自己一个阶段性的记录，不如就从冬至这天动笔好了。…
把這一年做個切片
馬力斯，三號風球，和婷婷在中環晚餐，看到商城指示牌提示氣象站公告時，突然想起去年九月來港入學時，掛的是十號風球。 來香港讀碩士這一年，像是在不確定中找到確定的人和事，一定會在大學站落車，一定會在創博館和同學一起趕作業，一定會在高錕樓接受導師的指教，我每次到CU，出地鐵站，站定幾秒鐘，從山底慢慢望到雲層，鱗次櫛比，又靜又豐，心曠神怡。…
大地是星空的一部分
年末，寒潮涌过南岭，飞去北京探亲，在飞机上俯瞰华北平原，非黑即白，点点黑是个个聚落，除了黑，就是雪白。到大兴机场，暖气逼人，落地窗外地勤在给飞机除雪，人们兢兢业业，如今工作难找，不敢懈怠。…
西贡映象
网约车司机听YouTube歌单 西贡“外滩”夜景 Cholon唐人街，道路尽头是方济各天主堂 为于Binh Tay 市场中央石刻，记录潮安人郭琰（yan三声）来胡志明创业乐善好施 从独立宫望中轴线 国际学校 胡志明市政厅 午后暴雨 雨后 独立宫前的年轻人 胡志明中央邮局 于胡志明新山一国际机场候机厅整理，注释完善于河内西湖喜来登。