Essays, by post. Slowly.
Three honest promises.
One essay at a time
Each letter is one finished essay, sent in full. No teasers. No "click to read more." If it is in your inbox, it is done.
No schedule, ever
I publish when the work is finished and not before. Sometimes that is twice a month. Sometimes it is once in three. The pace is the point.
No noise, none
No promotions. No reading lists I haven't read. No "what I am doing this week." Just essays. Unsubscribe at any time, with my blessing.
Free, always · Unsubscribe with one click
The newsletter is not a marketing channel. It is the work, sent.From the colophon
The recent letters.
Last 6 issues-
Vibe Coding and Agentic Engineering Are Not the Same Job
For a year the code came back broken. Then it came back clean. The floor opened for everyone, and a quieter job appeared: keeping the bar while the machine moves fast.
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The Smooth Exponential Explains the Whole AI Moment
For years it looks like nothing. Then the curve turns and the whole world feels late. The smooth exponential is the lens that holds the calm and the urgency at once.
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AI Sample Efficiency Is Why Humans Still Learn Faster
We treat these models as glittering minds. The real engine is invisible: a massive black hole of data at the center, a millionfold more than a person ever sees.
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Agentic Engineering: Who Holds the Quality Bar When Agents Write the Code
The machine stopped needing me to fix it, and that was the unsettling part. Vibe coding raises the floor. Agentic engineering holds the bar. The spec, the taste, and the understanding still belong to you.
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Physical AI Trains Robots in a Simulated World First
The chips built to make games look real became the engines of AI. Now they train machines to move, in a simulated world that runs millions of practice trials before lunch.
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What Should Your Kid Learn When AI Does the Heavy Lifting?
You watch your kid type a half-finished sentence into an AI chatbot and come back with a paragraph that scans better than yours did at their age. Do they still need the slow work?
I would rather send less.
I have been a subscriber to too many newsletters that arrive on Tuesdays whether or not the writer had something to say. I do not want to be that newsletter.
The cadence here is roughly once a month, but sometimes it is faster, and sometimes it is much slower. The only rule is that the essay is finished. If you do not hear from me for six weeks, it is because the essay is not ready yet.
And if you decide this is not for you, the unsubscribe link is at the bottom of every letter. I will not take it personally. The right reader is the one who reads.
Hanh