THIS IS WHAT YOUR SECOND BRAIN SHOULD LOOK LIKE... most people dump notes into obsidian and call it a second brain it’s not a second brain it’s a second drawer karpathy just dropped the pattern that changes this and it’s called the llm wiki every time you add a source ai reads it, extracts key claims, updates every connected note and flags contradictions your obsidian stops being an archive and starts being alive save this and show it to someone still using notion as a second brain full breakdown in the article ↓show more

STOP STORING NOTES. START COMPILING THEM. a pile of... notes isn't memory. it's accumulation wearing memory's clothes. these 7 repos build the other kind, where Claude reads a source once and links it to everything you already have. copy the list: graphify: turns a codebase with its docs, SQL schemas, configs and PDFs into a queryable knowledge graph. 127k stars Understand-Anything: maps a project's code, docs or wiki into a graph you can search and query from your coding assistant. 86k stars claude-obsidian: lets Claude Code build and maintain a Markdown knowledge base in Obsidian, with source-backed notes and grounded answers. 15k stars obsidian-second-brain: gives Claude Code long-term memory as plain markdown notes in an Obsidian vault. 4.8k stars claude-code-memory-setup: an Obsidian vault as persistent memory, graphs for your codebase, and a pipeline that saves insights from your chats. 1k stars second-brain: an Obsidian knowledge base the LLM maintains, built on Karpathy's LLM Wiki pattern. 727 stars llm-wikid: an agent compiles your raw sources into cross-linked wiki pages in Obsidian. 420 stars none of them is your second brain. they're the compiler. the brain is what you feed it pick one and feed it your first 50 sources. before that, a compiled wiki behaves like a plain search engine, so don't quit early. the full setup is in the articleshow more

Obsidian plus Vellum = a second brain that never... stops thinking. Works while you sleep. Obsidian holds everything you know. Vellum reasons across it continuously. Every idea connected. Every pattern surfaced. Every insight waiting when you wake up. The people who build this tonight will never go back to thinking alone. Read this and Bookmark it now.show more

Obsidian plus Vellum = a second brain that never... stops thinking. Works while you sleep. Obsidian holds everything you know. Vellum reasons across it continuously. Every idea connected. Every pattern surfaced. Every insight waiting when you wake up. The people who build this tonight will never go back to thinking alone. Read this and Bookmark it now.show more

Obsidian plus Vellum = a second brain that never... stops thinking. Works while you sleep. Obsidian holds everything you know. Vellum reasons across it continuously. Every idea connected. Every pattern surfaced. Every insight waiting when you wake up. The people who build this tonight will never go back to thinking alone. Read this and Bookmark it now.show more

It’s getting f*cking ridiculous: people are still building their... Claude second brain by hand while Obsidian’s own CEO already open-sourced the shortcut 4 repos that do the setup for you, all checked on GitHub: → obsidian skills by kepano, Obsidian’s CEO. 49.8K stars. teaches Claude how Obsidian actually works → claude obsidian. 15K stars. wiki, ingest, query and lint as ready-made commands → obsidian second brain. 4.8K stars, 48 commands, runs in Claude Code, Codex and Gemini → second brain starter. interviews you and writes a 9-phase build plan for your exact setup half the guides going around still quote old star counts and an install script that doesn’t even exist anymore the full guide is in the article below, install commands included save it so you don’t lose itshow more

YOUR OBSIDIAN VAULT READS ALL 2,000 NOTES TO ANSWER... ONE QUESTION. THAT'S NOT A SECOND BRAIN. That's a hoarder with markdown files. Hundreds of thousands of tokens burned per answer, and it still grabs the wrong note half the time. A real second brain runs on a graph: a router, an index, nodes, edges. Fable 5 reads 2-3 files instead of the whole vault. Answer back in under a second. The graph view everyone screenshots in Obsidian is a poster. The index is the actual engine. Full 11-step build below, from raw vault to working graph 👇show more

THIS MAN HASN’T HAD A SINGLE ORIGINAL IDEA IN... 8 WEEKS. CLAUDE HAS ALL OF THEM BEFORE HE WAKES UP he gave claude his obsidian vault on a saturday by monday it found a link between two notes written 6 weeks apart in different folders he turned that connection into his best-performing post his competitors are still organizing folders and writing morning pages and brainstorming in notion the only difference is one file called CLAUDE.md every note = fuel and every morning = synthesis and every week = ideas compounding faster than he can publish them this is not a tool anymore and this is not even an assistant this is a second brain that studied you for 2 months straight bookmark & like this or lose it forevershow more

IMAGINE YOUR NOTES APP LOOKING LIKE MISSION CONTROL this... is what a second brain becomes when you stop treating it like a folder and start treating it like a system it's called omega. every note is a star. every connection is a line. and it tracks stats most people have never seen on their own knowledge: maturity: 58%. velocity: +196%. active clusters. hotspots. top hubs. it's telling you which ideas are growing, which ones are going stale, and where your thinking is actually concentrated your regular notes app has none of this. you dump things in and hope you find them later this treats your knowledge like a living thing you can measure and grow here's the part that matters: when you can see your second brain, you actually use it the graph pulls you back. the growing clusters make you want to feed them. the stats make it a game you want to keep playing most people's notes are a graveyard nobody visits this is the version that's aliveshow more

SOMEONE VISUALIZED THEIR SECOND BRAIN AS A COLOR CODED... CLUSTER YOU CAN ROTATE every note sized by weight, activity bleeding through in reds and oranges, months of thinking compressed into one shape you can spin around this article runs a different kind of second brain through the same idea, four agents instead of one static map, each one updating its own cluster every six hours as new notes, chats, and code sessions come in the map isn’t just a snapshot here, it keeps redrawing itself while you sleep full breakdown in the article below👇show more

An Asian guy discovered a method to learn any... knowledge fast using AI. The key is Claude + Obsidian. Most people learn slowly: read, forget, read again, forget again. His method: use Claude to break any content into small, interconnected notes. Use Obsidian to link them, so every piece of knowledge is never isolated. Slow method: highlight books, keep going, forget after a week. Fast method: Claude breaks it into atomic notes, Obsidian links them into a network. Six months later, a new idea instantly connects to twenty things you already know. I compiled the full A–Z guide to building this second brain with Claude and Obsidian that most people have never discovered. Article belowshow more

I genuinely don't understand why everyone isn't using this... yet Andrej Karpathy, a co-founder of OpenAI, posted a simple idea that hit 16 million views: stop using AI to write code, use it to build a second brain. You point Claude Code at a folder, drop in any source, an article, a transcript, a PDF, and Claude reads it, links it, and files it into a living wiki of everything you know. It compounds like interest, the more you feed it, the smarter it gets. Here's the whole thing: > Install Obsidian, create a vault, open it in Claude Code > Paste Karpathy's wiki idea file and tell Claude to build it > Claude makes three folders: raw for sources, wiki for its pages, a CLAUDE.md that runs it > Drop any source into raw and say "ingest this" > Ask questions across everything, forever Five minutes to set up, and you never start from a blank chat again. Full step-by-step guide with Claude and Obsidian, link below. Bookmark thisshow more

THIS GUY NAVIGATES HIS MIND PALACE WITH HAND GESTURES... AND IT LOOKS INSANE deep learning, machine learning, anthropic, openai all floating in 3d space and he just waves his hand to move through the graph this is what karpathy was describing when he said knowledge should compound and connect instead of sitting in flat markdown files your second brain should feel like a place you can walk through not a search bar you type intoshow more

CANCEL your weekend plans. Today is July 11. Half... of 2026 is already gone. You still haven't built this. Karpathy — OpenAI co-founder, now Anthropic researcher — posted one idea that hit 21 million views: stop using AI to write code, use it to build a second brain. Not a chatbot. A knowledge base that compounds. Every source you add makes everything already inside it smarter. Three folders. One schema file. One command: "ingest this." Five minutes to set up, and you never start from a blank chat again. I turned his method into a full A–Z guide for Claude and Obsidian. find it below.show more

I still don't understand why everyone is not using... this yet. Thanks to it, a year ago I increased my income to 17,000 dollars a month Andrey Karpathy, co-founder of OpenAI, published a simple idea that got 16 million views: stop using AI to write code, use it to build a second brain You point Claude Code to a folder, drop any source in there (an article, transcript, PDF) and Claude reads it, links it, and saves it into a living wiki of everything you know. It compounds like interest: the more you feed it, the smarter it gets Here is the gist: Install Obsidian, create a vault, open it in Claude Code Paste the file with Karpathy's wiki idea and tell Claude to build it Claude creates three folders: raw for sources, wiki for its pages, CLAUDE which runs everything Drop any source into raw and say "ingest this" Ask questions across everything, forever Five minutes to set up, and you never start with an empty chat again The full step-by-step guide is in the article. Save to bookmarksshow more

🚨this is getting SCARY. i just watched a 19-year-old... on a flight with no wifi quietly turn Elon's Grok Bot into a second brain that runs his whole business (founders pay $70,000+ a year for an assistant who does half of this), and i'd bet 99% of people have no idea it's possible yet it's the one who remembers every client, every price and every deadline so the founder never has to, and the good ones are never free you can copy his whole setup in four lines: - make one folder and call it your second brain - drop in your projects, clients, prices and a few things you wrote - open Grok Bot and point it at that folder - connect your Telegram from there, Grok Bot handles everything every morning at 7:00 it reads the folder, answers clients in his voice, quotes prices the way he would and sends him one Telegram message with whatever needs a yes 1 folder ≈ 3 months of his decisions zero onboarding zero repeating himself zero inbox he set it up before takeoff. it worked the entire flight you're done explaining yourself to AI you're running your own second brain save this. the full course is belowshow more

1 Neural Network + Obsidian + Karpathy’s 1-file method... = the most unhinged second brain build of 2026. It remembers everything you’ve ever done, and it costs $0 on top of what you already pay. The base is Karpathy’s append and review: 1 giant note, new thoughts stack on top, old ones sink, every few days you reread and pull the survivors back up. No folders, no tags, no plugins the rereading IS the system, because review is what turns storage into thinking. The flaw: past 10,000 lines, no human rereads anything. That’s where the neural network takes over. You keep the note in Obsidian 1 vault, everything dumps to the top: ideas, links, meeting fragments, half-thoughts. You never organize, you only dump. It all lives as plain markdown on your own disk, and that detail is the whole trick. Because now you point Claude Code at the vault folder, and it reads every line you’ve ever written. “What did I think about pricing in March.” “Find the 3 ideas I keep circling.” “What did I drop that deserves a second look.” It answers from YOUR notes, with quotes, in 15 seconds. Then once a week, 1 prompt closes the loop: read the last 7 days, surface the 5 entries worth pulling back up, flag anything that contradicts what I wrote a month ago. The model does the sinking and surfacing Karpathy did by hand, and the note stays alive instead of turning into a graveyard. Week 1 feels like nothing. Week 4 you hit the first “I already solved this in January.” Month 3 you consult your past self more than Google. Most second brains die in 11 days under 40 plugins and 200 folders. This one is 1 file and a loop, and it compounds because dumping takes 0 discipline. Notion stores what you thought. This thing argues back.show more

this is f**king dangerous Most people treat Claude like... a search bar. The ones with a second brain treat it as an intelligence layer on everything they know. Here's the 15-minute setup: → Install Claude Code → Install Obsidian, create a vault → Open it in Claude Code, drop in the CLAUDE.md schema — that one file is the engine → Throw any source in, say "ingest this" Done. From then on, everything you know is queryable by the most capable AI on earth. Claude wires each source against your whole vault and surfaces connections you forgot you had. Build it tonight. full A–Z guide below.show more

🚨 SCIENTISTS ARE USING AI TO MAP A HIDDEN... “CLEANING SYSTEM” INSIDE THE HUMAN BRAIN AND IT COULD CHANGE HOW WE UNDERSTAND SLEEP, AGING, AND NEURODEGENERATIVE DISEASE. It’s called the glymphatic system a vast network of fluid channels that flushes toxic waste from the brain while you sleep. For years it was almost impossible to observe in detail. Now AI-powered imaging is revealing it like a living galaxy of microscopic rivers and pathways inside neural tissue. Why this matters: Your brain produces toxic proteins constantly. The glymphatic system is one of its primary waste-clearance mechanisms clearing the very proteins linked to Alzheimer’s, Parkinson’s, and other neurodegenerative diseases. But here’s the unsettling part: This cleaning system becomes dramatically less efficient with age, poor sleep, stress, and brain injury. Sleep may not just “rest” your mind it may literally wash your brain. The deeper implication is staggering: The brain isn’t just a computer. It’s a dynamic, living network that constantly rebuilds and cleanses itself in real time. The more we map it, the more it looks like an entire universe of connected energy flows inside our skulls. What if some neurological diseases begin when the brain can no longer properly “wash” itself at night? Follow for more frontier neuroscience and future technology.show more

I still genuinely wonder why not everyone is using... this approach yet. I launched 50 Grok agents and connected them to a second brain. Thanks to that, just a month ago I managed to make $7,600 Elon Musk published a simple idea that hit 30 million views: the most likely outcome is that AI and robots make everyone wealthy. In fact, far wealthier than the richest person on Earth This is precisely how the setup with Grok works, and the smartest configuration currently costs $0 extra: Create a bot and name it Brain Connect it to a local folder and configure it to build a personal wiki out of everything you know right on your computer The system will create key directories: raw for sources, wiki for pages, and save the entire method as a working skill Drop anything into the chat: an article, a PDF, a YouTube link, or a screenshot. The bot will instantly read everything, link it with context, and record it Set up routine ingestion: while you sleep, the system pulls in everything you saved to your bookmarks Ask questions about absolutely anything you have ever saved, at any time Your laptop stays closed, but your knowledge base grows on its own. Just five minutes to set up, and this process starts compounding like interest from day one The setup takes 10 minutes, after which the work is automated Not using Grok in 2026 is a huge mistake. Just as big of a mistake as not bookmarking this postshow more

Hyped to share this – I recently built an... AI chat plugin for Obsidian using Cursor Composer. I've been using it for the last couple weeks and its totally changed how I use Obsidian. I use it to reflect, generate ideas, plan my day, and more. It's also great at being a search-and-synthesis machine for my 2,000+ notes – like having a Perplexity for my brain. If you're an Obsidian power user and want to try out the alpha, reply below and I'll DM you details!show more