01
I Stopped Before Renewing Ghost: How This Blog Got Built
#ai#thoughts
Standing on the renewal screen, it occurred to me that I could just build the thing myself. I cannot write code, but I can make judgments, so I split those two apart and cleared three problems on the way to a blog that finally fits.
2026-07-2511 min · read
02
[Neurain Dev Log] #7. Too Good to Keep to Myself: An npm Debut and the Homework Left
#ai#second brain
I got all the way to npm chasing a one-line install, and then an independent audit scored it 42.7 out of 100. Here is the two-month report card and the nine things left to fix, in priority order.
2026-07-2510 min · read
03
[Neurain Dev Log] #6. How I Actually Use the Brain These Days
#ai#second brain
I asked for a deck and got back more than I asked for, because it had pulled old meetings and past decisions out of the brain. Records compound. Past the two-month mark, output quality is decided by what has accumulated rather than by the prompt.
2026-07-218 min · read
04
Why One Apartment Has Three Different Sizes: A Guide to Korean Floor-Area Terms
#real estate
One unit has several sizes because each counts a different boundary. Exclusive area first, shared space layered on, applied to the 84㎡ standard and Olympic Family Town.
2026-07-205 min · read
05
[Neurain Dev Log] #5. How to Read Neurain
#ai#second brain
The system is called Neurain. Split it into three parts, knowledge, operating rules, and a swappable AI host, and the structure snaps into focus. I took apart nineteen comparable products, and here is what I copied, what I refused, and what moat is left.
2026-07-0911 min · read
06
[Neurain Dev Log] #4. An Anatomy of the Finished Brain
#ai#second brain
Ask one question and search runs four stages over three seconds. Split the words and widen them with synonyms, pull candidates from 4,700 documents, filter down to real evidence, then compose the answer on top of it. Answer quality is decided by the evidence, not the model.
2026-07-068 min · read
07
[Neurain Dev Log] #3. 518 Commits From Someone Who Cannot Write Code
#ai#second brain
I state what I want in Korean, Claude builds it, Codex attacks it, and I keep only the rulings and the dangerous buttons. For someone who cannot read code, trusting the output means measuring behavior rather than reading the source.
2026-06-309 min · read
08
[Neurain Dev Log] #2. I Put a Brain, Not Code, Into a Coding Tool
#ai#second brain
Karpathy's LLM Wiki note flips the roles: the wiki is maintained by an AI, not by people. A coding tool that works inside a folder you point it at turned out to be the right vessel. What I changed rather than copied is what became Neurain.
2026-06-199 min · read
09
[Neurain Dev Log] #1. My AI Assistant Loses Its Memory Every Morning
#ai#second brain
Running an AI as a Telegram assistant widened what I could hand off, but conversations were forgotten, sessions never talked to each other, and switching models reset everything. The bottleneck was not model intelligence. It was the absence of a structure that holds context.
2026-06-159 min · read
10
What If You Studied Investing From Scratch?
#investment
I laid out my own study order: capitalism, money supply, bonds, rates, real estate, stocks, commodities, coins, geography. Each step explains why it sits there.
2025-09-264 min · read