A guy in China wired Andrej Karpathy method into Claude Code and turned a dead 15,000-note Obsidian vault into the smartest second brain on earth.
His vault was a graveyard: 956 files nobody reopened, 80 saved tabs, 0 clicks in 6 months.
Then one Karpathy line broke him: you don’t know a thing until you can build it from scratch. Tutorials are fake learning that your brain wipes in 3 days, along with the 40 tabs you saved and never opened.
So he flipped the whole frame.
Obsidian is the IDE, Claude Code is the programmer, and his 5,000 notes are the codebase.
He stopped asking AI questions it forgets by morning and made it maintain a living wiki instead.
3 commands run the whole system.
Ingest: he drops an article, a podcast, a 40-page PDF, and Claude splits it into atomic pages linked to everything he already knows.
Query: he asks anything and it answers from his own notes, in his own words, citing his own pages instead of guessing from training data.
Close the loop: every answer becomes a new note, and the vault sharpens each time he touches it, compounding instead of rotting.
Week 1 was 2000 notes of mostly noise.
Month 2 hit 7,400 with connections firing.
Month 6 became 15,000 notes that argue back.
It beat every $2,000 AI course he ever bought, because his already knew what he knew.
The folder layout and the exact Claude Code prompt are in the reply.
Follow if you build with AI.
His notes stopped being storage.
They started thinking back.
В Маріуполі, коли я думала, шо загину, то найбільше мене засмучувало те, що я не стану мамою. В полоні мене тримала мрія все ж стати мамою. 4 роки я вже вдома, а мрія так і лишається нездійсненною.
Все частіше думаю, що такою вона назавжди і лишиться.
You can build an AI second brain in 15 minutes.
No coding experience needed. no $1000 course
[Here is how you can do it in 5 mins:]
Step 1: Download Claude Desktop.
Step 2: Download Obsidian Desktop.
Step 3: Create a new vault and start dropping .MD files into it.
Step 4: Tell Claude Code to connect directly to your vault using Andrej Karpathy's prompt: https://t.co/2SJBZyjXDl
That is it.
Your entire knowledge base becomes searchable, connectable, and queryable by the most powerful AI model on earth.
Every note you have ever written.
Every idea you have ever captured.
Every resource you have ever saved.
Claude can now read all of it, find connections you missed, and surface insights from your own thinking that you forgot you had.
Most people are using Claude as a search engine.
The people building second brains with it are using it as an intelligence layer on top of everything they know.
The gap between those two use cases is the gap between asking Google a question and having a research partner who has read everything you have ever written.
Bookmark this.
Build it tonight.
🚨 Anthropic just showed a 24-minute workshop on how to actually do prompts for Claude.
Taught by the people who built it.
Free. No registration. No paywall.
I've seen $300 courses that don't cover what they teach in the first 8 minutes.
Watch it and bookmark it now.
crazy.. vibe directing is here
you can chat with agents to make film now.. no more manually generating single clip, step by step OpenArt tutorial below: