A guy in China plugged an LLM into Karpathy method + Claude Code and built a second brain that remembers everything forever. Not a note app, not RAG just 3 folders on a laptop. Folder 1 holds raw sources: articles, journal entries, chat logs. The LLM reads them but... never touches them. Folder 2 is the wiki hundreds of markdown pages the LLM writes and maintains itself, where every person, idea and decision gets filed, cross-referenced and kept current. Folder 3 is one file: CLAUDEmd, the rulebook that turns a chatbot into a librarian. He drops in a new article and Claude reads it, updates 10-15 pages, flags what contradicts his old notes, logs the timestamp while he watches his memory grow node by node in Obsidian graph view. Ask it anything and it doesn’t dig through raw files like ChatGPT does the synthesis already exists, the connections are already drawn. The method comes from a gist Karpathy posted on April 4, now sitting at 5,000 stars and 5,000 forks, with 1 production team already scaled to 4,000 interlinked concepts in 6 months. The part nobody mentions: Vannevar Bush described this exact machine in 1945 the Memex, a personal memory store with trails between documents. Nobody built it for 81 years because someone had to do the maintenance. Now maintenance costs nothing the LLM does the filing while the human does the thinking. Every article makes the brain smarter, and it never forgets. His memory has a git history now.show more

Obsidian was nice for a month. Then I hit all its limitations, and realised obsidian is competely irrelevant.

this is the future no question

As long as you know how to use it properly

I CAN EXPLODE A TENNIS BALL USING ONLY MY MIND

Too much orchestration and management, it’s still a part time job managing this. Don’t you feel there’s a lot of friction to the process?

Wow, looks stunning

That's awesome! It sounds like a really smart way to organize information. I'm curious to see how it evolves.

I see an infinite set of growing fractles

I thought people usually use Obsidian to create a second brain

给脑子挂了个外挂硬盘，听着就很折腾

The Memex comparison is spot on, this finally feels like that idea built with maintenance solved.

Karpathy method is doing the retrieval. CLAUDE.md is doing the discipline. Most people building "second brains" only bother with one of the two.

I've been thinking a lot about AI memory systems lately. My take is the boring maintenance part was always the hardest piece to solve.

AI memory is getting seriously interesting.

I have a solution to that! Equilibrium layer which contains translations of processess and models from various domains into an abstract definition of a core fundamental model. When asked for solution in any domain, it just needs to identify a solution for the fundamental process

This is definitely not a novel invention.

Running this exact setup (Claude Code + Obsidian) for months. You nailed the part most miss: contradiction-flagging. Raw capture is easy; the value is the compile pass that distills notes into linked pages + a weekly "what am I missing?" gap scan. Makes it think, not just store.

shifting the heavy lifting of knowledge maintenance from the user to an automated local file system finally makes the dream of the memex practical