I work with AI and data in Hanoi, and I write things down here for my friends.
I grew up in Quảng Bình and now live in Hanoi with my wife and our little daughter. I build models when I’m lucky. Most days, I’m cleaning data and wondering why a column called “date” contains everything except dates. Here I write about technology, the places I have visited, and small thoughts on living well. Pour some tea and stay a while.
Technology
All notes →Reading notes on AI and data science: useful ideas, worked examples, and questions worth asking.

MCP Makes the Connection Easier to Describe
Reading the Model Context Protocol through a simple research example: what connects, what a tool exposes, and which decisions remain outside the protocol.

When Generative AI Can See the Question
What changes when an AI model can work with images and video, from asking about a diagram to generating a new visual explanation.

Coding Assistants Are Moving Beyond the Next Line
Inline suggestions, conversational help and delegated coding tasks offer different kinds of assistance. Here is how I make sense of the changing interface.
Travel
All notes →Notes from places I have visited, and the small details I want to remember.

A Moscow Sunday Without a Timetable
Remembering a student walk through side streets and a park, with bread in my bag and homework waiting at the other end.

Two Days in Huế, Mostly on Foot
Rain on a notebook, an unhurried bowl of noodles, and a short visit that left room to call home.

Petersburg in the Back of a Notebook
A few pages from a student visit in 2019: a museum room, a canal, powdered sugar and a day that resisted my map.
Life & Happiness
All notes →Small thoughts on living well: sitting still, the feeling of enough, gratitude and the people around me.

Anh cũng muốn chăm sóc em / I Want to Care for You Too
Yêu em cả trong những điều rất nhỏ của cuộc sống gia đình. A letter about care, attention and being on the same side.

Anh vẫn muốn hẹn hò với em / I Still Want to Date You
Một lời hẹn dành cho vợ, giữa cuộc sống đã có thêm nhiều việc. An invitation to keep making time for each other.

Anh yêu em trong những ngày bình thường / I Love Our Ordinary Days
Có những điều anh muốn nói rõ hơn với em. A letter to my wife about the life we share.