Posts from 2026-03
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Your AI Is Flattering You — Why You Need an Agent Harness
"I couldn't explain why superpowers was better. The output was simply different."
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RAG Was Not the Silver Bullet — Why 72% Fail
We believed that automating oncall response runbooks with RAG would change an engineer's 3 a.m. We swapped models, swapped chunking strategies, invested months. Accuracy never reached 70%. The project was scrapped.
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Google's TurboQuant — A "DeepSeek Moment" for Memory, or the Prelude to the Next Rally?
If AI eats only one-sixth of the memory, do memory chips sell only one-sixth as well? A single paper from Google researchers vaporized trillions of won in market cap at Samsung Electronics and SK hynix. But is the panic accurate, or is it déjà vu of the January 2025 DeepSeek shock?
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The Token-Count Era — We Are Measuring AI Usage Wrong
"You consumed 210 billion tokens this quarter." That was the report one OpenAI engineer received. Meta has begun folding employees' AI consumption into performance reviews. The same week, Anthropic published research saying the opposite — the more skilled the user, the less they delegate to AI.
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What Lets an Agent Survive Being Copied
A competitor cloned your agent. Same prompts, same model, same features. The users did not leave. Why?
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AI Native Is Not About Using More AI — Why You Have to Reinvent How You Work
We rolled out Claude Code to the team. A month later, code output had tripled. Yet shipping speed had not changed. Meetings still happen five times a week, planning docs still pile up in Google Docs, code review is still the bottleneck. What went wrong?
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Guterres Backed It, the U.S. Rejected It — UN AI Hub Bid, Week-One Scorecard
A March 10 bid declaration; an LOI signed with six UN agencies on March 17. Korea's global AI hub diplomacy closed its first week with a stronger scorecard than expected. Guterres voiced support, six agencies signed letters of intent, and Switzerland's president picked up the phone first. And yet the United States — the country Korea has cast as the partner it will "lead together" with — is the same country that voted **117 to 2 against UN AI governance itself.** Prime Minister Kim Min-seok offered an answer to this contradiction in Geneva: **"Not a new organization, but a program."** What does this framing shift mean, and what kind of world opens up if it succeeds?
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The Reality of the GEO Era — Is AI Citing Your Site?
You worked your way to page one of Google. ChatGPT still does not know your site exists. In 2026, "being found in search" and "being chosen by AI" have become two entirely different games.
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The Light and Shadow of AI First — The Real Question Is "For Whom"
"AI First failed" and "AI replaces people" are both half-truths. Klarna cut 700 staff with AI and is now rehiring; Microsoft writes 30% of its code with AI and is cutting 6,000 jobs. Same technology, different outcomes. The question is not whether to use AI, but **where, and by whom.**
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A UN AI Hub in Korea — Hosting a Building, or Writing the Rules?
Trump has withdrawn from 66 international organizations, the UN budget has been cut 84%, and Geneva-based bodies have begun a great migration. In this disorder, Korea has declared its bid to host a "UN AI Hub." Prime Minister Kim Min-seok made it official on March 10, 2026. One question, though. **Is Korea bidding for the building, or for the authority to write the rules?**
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The Frontend Testing Answer for 2026 — Vitest + Testing Library + Playwright, and the State of the Next.js Ecosystem
The Jest era is over, and Vitest has become the new default. But the real story is not "which testing tool to use" — it is "where the entire frontend ecosystem is heading." For 2026, here is the combination developers are actually choosing, grounded in data and community discussion.
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"The Implementation Was So Easy I Could Not Resist the Temptation" — Why a 60-Year-Old Confession Echoes in the AI Era
On March 5, 2026, two headlines ran side by side in the tech news.
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From a 1959 Sorting Problem in Moscow to a 2026 Amazon Outage — What Tony Hoare Left Behind
In 1959, a twenty-six-year-old Englishman named Tony Hoare was at Moscow State University. Working on Russian-English machine translation in Kolmogorov's lab, he was handed a practical problem: he needed to sort Russian words into dictionary order.
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The Verification Loop — The Most Underrated Pattern of the AI Agent Era
"Can't we just crank Reasoning Effort to the max?" The GPT-5.4 prompting guide says the opposite: a lightweight verification loop beats heavyweight reasoning. And Claude Opus 4.6 ran a verification loop on its own, without being asked.
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Is Prompt Engineering Dead — What the GPT-5.4 Guide Quietly Declared
After reading the GPT-5.4 prompting guide, it hit me. OpenAI was no longer teaching "how to write a prompt" — it was teaching "how to design a system." Andrej Karpathy already said it: "The LLM is the CPU, the context window is RAM, and your role is the OS."
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The People Raising Lobsters — What the OpenClaw Phenomenon Reveals About AI Agents
A month ago I installed OpenClaw on a VPS and thought, "Isn't this just a GUI Claude Code?" In the meantime, 1,000 people are queuing in China, NVIDIA is building NemoClaw, Tencent has shipped WorkBuddy. And Claude Opus 4.6 figured out that it was being tested.
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Claude Code Deep Dive — The Secrets of Auto-Update and Mastering Remote Control
Claude Code stands at the center of the 2026 developer toolchain. But most users only scratch the surface. How does auto-update actually work? Why is Remote Control a game changer? This essay digs into the hidden mechanisms of Claude Code.
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"My AI Skeptic Friends Are All Nuts" — The Fault Line Running Through 2,826 Comments
In June 2025, a legend of the security industry lobbed a grenade onto Hacker News: "My AI skeptic friends are all nuts." 2,356 points, 2,826 comments. The developer community split in two. And the fault line is still widening.
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The Front Line of AI Militarization — Anthropic vs Pentagon, and the Choice We Face
In the last week of February 2026, the most dramatic 72 hours in AI history unfolded. Anthropic refused the Pentagon's demand for "any lawful use," OpenAI filled the gap that same day, and the US government designated a domestic AI firm a supply-chain risk. Three Hacker News posts on the affair logged a combined 5,687 points. This is not a contract dispute. It is the moment AI safety idealism collided head-on with geopolitical reality.
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The Internet Has Become a Single Point of Failure — An SRE Anatomy of Cloud Dependency Risk
"The moment a self-healing system becomes a self-destructing one, we meet the paradox of automation."
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WikiTok — Scrolling Wikipedia Like TikTok, and What Changes
In a world ruled by algorithms, an app without an algorithm went viral. WikiTok, which flips through Wikipedia's 9.5 million articles TikTok-style, aspires to be "the opposite of doomscrolling." The questions raised by this tiny web app — built with AI in two hours — are bigger than they look.
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The AI Era Rewired How I Ask Questions — How Prompts Reshaped the Topography of Thought
After I started using Claude Code, my sentences got longer. The time I spent figuring out what I actually wanted, before asking for code, kept growing. And then one day I picked up a book of poetry at the bookstore. AI had become a mirror reflecting the shape of my own thinking.
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The Twilight of the IDE — Are Developers Walking Away from the IDE in the Age of AI Coding Agents?
I cannot remember the last time I opened VS Code. The IntelliJ renewal emails arrive, and I ignore them. After Claude Code started handling everything in the terminal, the IDE quietly disappeared from my workflow. And it turns out I am not alone.
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CLI Renaissance — Why the Terminal Became the Center of the World Again in the Age of AI Agents
The GUI era is not over. But you cannot tell an AI agent to click a button. In 2026, the CLI tools developers have loved for decades are becoming the hands and feet of AI agents — and the terminal has returned to the center of software development.
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The Return of the CLI — Google Workspace CLI (gws) and the Dawn of the "Agent First CLI" Era
In 2026, Google unified Gmail, Drive, Sheets, and Calendar into a single command line. But the real users of this CLI are not humans — they are AI agents. 14,500 GitHub stars in three days and a #1 Hacker News slot — the CLI is back, but for entirely different reasons than before.
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Building an AI Search System for a 1.2TB Multimedia Archive
"When does the term 'bubble economy' first appear in this broadcaster's archive? How does the editorial tone shift before and after?"
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Designing an AI Search System for a 1.2TB Multimedia Archive
"When does Kim Jong Un first appear in this newspaper? And how did the reporting tone shift before and after?"
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From 2023 to Today: The Rise and Evolution of AI Tools — 23 You Need to Know
Written March 2026. Intended audience: developers who want a map of which tool emerged out of which current.
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How Far Can You Actually Customize Streamlit?
**Audience**: people who are building data apps in Python and want to move past "I gave Streamlit a try" into something one level deeper.
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To the Midlife Engineer Who Was Never Promoted — Why It Is Fine Not to Become a Leader, in Data
On the day I received my 20-year service award, a colleague twenty years younger was promoted into a leadership role. I congratulated him, and something quietly ached. Is that feeling abnormal? Lacan, Erikson, and seventy years of longitudinal research have an answer.
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For Companies Wrestling with RAG Precision
"We tried RAG too… it was less impressive than we expected."
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The Infrastructure Is Laid, But There Are No Players — What Is Missing From Korea's AI Policy
A 10.1 trillion won budget, 260,000 GPUs, an AI Framework Act now in force. The numbers look impressive. So where is the Korean frontier AI model? The Korean AI unicorn? The Korean AI service used worldwide? "The foundations are laid, but there is no team on the field."
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Watching a Cabinet Meeting and Thinking About "Open Management" in IT Organizations — Questions a Startup CTO Asks Himself
Seen through the eyes of an organizational operator rather than a politician, what is there to learn from a publicly broadcast cabinet meeting? A CTO's growth is a journey from technical depth to organizational breadth.
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When You Can No Longer Tell Whether It Is a Human or an Agent — Life After "API First," Into the "Agent First" World
The "customer" visiting your website is changing. In 2025, with bots already accounting for the majority of web traffic, your next customer may not be a human holding a browser but an AI Agent calling an API.