Loading video...

Video Failed to Load

There was a problem loading this video. This could be due to a temporary network issue or the video might be unavailable.

delete Obsidian. a second brain you have to feed isn't a second brain. it's homework! minimi captures everything you do automatically - wiki builds itself, updates while you sleep. it's Karpathy's second brain with no manual effort. seamless. try here:

Ojasvika Sahu (Oz)

5,117 subscribers

100,905 views • 23 days ago •via X (Twitter)

Science & Technology

Anya Rossi• Live Now

Private livecam show

0 Comments

No comments available

Comments from the original post will appear here

Related Videos

Andrej Karpathy builds a personal wiki to think with LLMs. I took that idea and went further. Claude Code + Obsidian = an AI that actually knows you. Your goals. Your context. Your history. Not a chatbot. A second brain that remembers. Here's exactly how to build it:

Andrej Karpathy builds a personal wiki to think with LLMs. I took that idea and went further. Claude Code + Obsidian = an AI that actually knows you. Your goals. Your context. Your history. Not a chatbot. A second brain that remembers. Here's exactly how to build it:

leopardracer

221,465 views • 3 months ago

Huge updates are coming soon in Membase. We made Andrej Karpathy's LLM-Wiki + Garry Tan's Gbrain into a real working product. Memory, Wiki, auto-update, and live sync with agents. Anyone can get their own second brain with a few clicks.

Huge updates are coming soon in Membase. We made Andrej Karpathy's LLM-Wiki + Garry Tan's Gbrain into a real working product. Memory, Wiki, auto-update, and live sync with agents. Anyone can get their own second brain with a few clicks.

Joshua Park

110,245 views • 3 months ago

everyone's talking about building a second brain with claude code + obsidian right now. so i made a full video walkthrough showing exactly how to set it up from scratch. drop an article into a folder. claude code reads it, creates wiki pages, builds relationships between concepts, and links everything automatically. by 20 sources your wiki knows more about your domain than you can hold in your head. here's the full setup:

everyone's talking about building a second brain with claude code + obsidian right now. so i made a full video walkthrough showing exactly how to set it up from scratch. drop an article into a folder. claude code reads it, creates wiki pages, builds relationships between concepts, and links everything automatically. by 20 sources your wiki knows more about your domain than you can hold in your head. here's the full setup:

J.B.

54,534 views • 3 months ago

Obsidian + Claude Code builds a real second brain in 17 minutes. Claude Code reads entire vault, connects notes & builds a knowledge graph of everything you've ever written. Bookmark it. This one actually works.

Obsidian + Claude Code builds a real second brain in 17 minutes. Claude Code reads entire vault, connects notes & builds a knowledge graph of everything you've ever written. Bookmark it. This one actually works.

0xMarioNawfal

68,173 views • 3 months ago

Karpathy dropped a viral post about building a "second brain" with AI. We built it live in under 20 minutes. The system: 1. Three folders: raw/ (brain dump), wiki/ (AI organizes it), outputs/ (query results) 2. One-click install: npx skills add NicholasSpisak/second-brain 3. Obsidian Web Clipper to capture any article with one click 4. Run "ingest" and the AI reads everything in raw/, builds wiki pages, and maps connections automatically 5. Query your own knowledge base like talking to an expert 6. Monthly lint command catches contradictions and gaps before they compound Day 1 it's basic. Day 90 it's a company asset nobody else has. Free skill in the YouTube description that scaffolds the whole thing in 60 seconds. Video below, YouTube link in the replies.

Karpathy dropped a viral post about building a "second brain" with AI. We built it live in under 20 minutes. The system: 1. Three folders: raw/ (brain dump), wiki/ (AI organizes it), outputs/ (query results) 2. One-click install: npx skills add NicholasSpisak/second-brain 3. Obsidian Web Clipper to capture any article with one click 4. Run "ingest" and the AI reads everything in raw/, builds wiki pages, and maps connections automatically 5. Query your own knowledge base like talking to an expert 6. Monthly lint command catches contradictions and gaps before they compound Day 1 it's basic. Day 90 it's a company asset nobody else has. Free skill in the YouTube description that scaffolds the whole thing in 60 seconds. Video below, YouTube link in the replies.

Corey Ganim

128,433 views • 3 months ago

KARPATHY JUST MADE EVERY SECOND BRAIN GURU LOOK STUPID an artist with zero tech background took her obsidian vault, plugged it into blender and claude and turned her notes into a 3d map of her entire city no zettelkasten course, no notion templates, no productivity system just obsidian graphs that became something you can actually see and navigate this is what happens when your second brain stops being a folder and starts being a living structure save this for when someone tells you obsidian is just for nerds ↓

KARPATHY JUST MADE EVERY SECOND BRAIN GURU LOOK STUPID an artist with zero tech background took her obsidian vault, plugged it into blender and claude and turned her notes into a 3d map of her entire city no zettelkasten course, no notion templates, no productivity system just obsidian graphs that became something you can actually see and navigate this is what happens when your second brain stops being a folder and starts being a living structure save this for when someone tells you obsidian is just for nerds ↓

leopardracer

79,488 views • 19 days ago

Claude Code + Obsidian is the most powerful AI combo I've ever used. I literally built an AI second brain that runs my entire life. Inspired by Andrej Karpathy's LLM Knowledge Wiki, this tool has been a complete game-changer. Here's EXACTLY how to build one for yourself:

Claude Code + Obsidian is the most powerful AI combo I've ever used. I literally built an AI second brain that runs my entire life. Inspired by Andrej Karpathy's LLM Knowledge Wiki, this tool has been a complete game-changer. Here's EXACTLY how to build one for yourself:

Miles Deutscher

969,415 views • 3 months ago

What's harder than any workout? Intentionally doing a cold plunge in February Your brain fights you every second. It just wants to crawl out of your brain. It's NOT easy. But the health benefits are great -- especially for reducing joint inflammation

What's harder than any workout? Intentionally doing a cold plunge in February Your brain fights you every second. It just wants to crawl out of your brain. It's NOT easy. But the health benefits are great -- especially for reducing joint inflammation

Adam Taggart

22,191 views • 1 year ago

You have 100+ tabs open and your brain is fried. Introducing Dex, your second brain in Chrome that organizes, remembers, and takes action for you. Turn tabs into to-dos, multitask with agents, find and save anything for later. All without leaving your tab. As a founder, it's already saved me hundreds of hours. Comment for 1M free tokens - joindex [dot] com

You have 100+ tabs open and your brain is fried. Introducing Dex, your second brain in Chrome that organizes, remembers, and takes action for you. Turn tabs into to-dos, multitask with agents, find and save anything for later. All without leaving your tab. As a founder, it's already saved me hundreds of hours. Comment for 1M free tokens - joindex [dot] com

Regina Lin (@ICML 2026)

269,940 views • 7 months ago

One of the smartest things you can do with Fable 5 right now: Re-create your AI second brain to log all your business ideas, personal context, and important data. The first time I built an AI second brain was with Opus, but I recently re-created it with Fable 5, and it blew my mind. Here's exactly how to get started: Step 1. Set up your Obsidian vault Download Obsidian from Obsidian dot md if you haven't already. Then, go ahead and create a clean vault with your most important folders. For example: /ideas → business ideas, content angles, random thoughts /context → who you are, your business, your goals, your stack /data → important numbers, portfolios, metrics /log → daily entries, decisions, lessons learned This is your database. Everything Fable reads lives here. Step 2. Connect Fable 5 to your vault I like this Claude Code prompt: "/goal connect to my Obsidian vault at [path] and act as my second brain orchestrator. Read everything in /context before every session. Log anything new I tell you to /log with today's date." Fable now reads your vault before it answers anything - it knows your business, your goals, your history. Step 3. Build the self-update habit Every time you have an idea, a decision, or a lesson, tell Fable: "Log this to my second brain: [thought]" Step 4. Start querying it You can start sending prompts like: → "What are the most common themes across my last 30 ideas?" → "Based on my context, what should I be prioritising this week?" → "What decisions have I made about my content strategy so far?" Opus was good at this, but Fable is on another level. I feel the depth of reasoning it brings to your data is genuinely unlike anything I've used before. Some might argue it's a bit of overkill to use Fable for a simple second-brain setup, but if you have the means, it's 100% worth it. Build this once, and it'll compound forever.

One of the smartest things you can do with Fable 5 right now: Re-create your AI second brain to log all your business ideas, personal context, and important data. The first time I built an AI second brain was with Opus, but I recently re-created it with Fable 5, and it blew my mind. Here's exactly how to get started: Step 1. Set up your Obsidian vault Download Obsidian from Obsidian dot md if you haven't already. Then, go ahead and create a clean vault with your most important folders. For example: /ideas → business ideas, content angles, random thoughts /context → who you are, your business, your goals, your stack /data → important numbers, portfolios, metrics /log → daily entries, decisions, lessons learned This is your database. Everything Fable reads lives here. Step 2. Connect Fable 5 to your vault I like this Claude Code prompt: "/goal connect to my Obsidian vault at [path] and act as my second brain orchestrator. Read everything in /context before every session. Log anything new I tell you to /log with today's date." Fable now reads your vault before it answers anything - it knows your business, your goals, your history. Step 3. Build the self-update habit Every time you have an idea, a decision, or a lesson, tell Fable: "Log this to my second brain: [thought]" Step 4. Start querying it You can start sending prompts like: → "What are the most common themes across my last 30 ideas?" → "Based on my context, what should I be prioritising this week?" → "What decisions have I made about my content strategy so far?" Opus was good at this, but Fable is on another level. I feel the depth of reasoning it brings to your data is genuinely unlike anything I've used before. Some might argue it's a bit of overkill to use Fable for a simple second-brain setup, but if you have the means, it's 100% worth it. Build this once, and it'll compound forever.

Miles Deutscher

82,831 views • 3 days ago

THE GUY WHO RUNS THE ACCELERATOR BEHIND AIRBNB, COINBASE, AND STRIPE OPEN-SOURCED THE EXACT AI SECOND BRAIN HE RUNS HIS BUSINESS ON Garry Tan runs Y Combinator, the startup factory behind Airbnb, Coinbase, Stripe, and 5000 another companies He also runs an AI second brain with 146,000 pages in it, ingesting his meetings, emails, and notes while he sleeps, and he open-sourced it. Repo: /garrytan/gbrain But you don't start there. Here are the five levels, simplest to most complex: Level 1: routing. A CLAUDE.md that acts as a map telling the AI where things live, plus a few markdown folders. You find things by exact name. Most people never actually need more than this. Level 2: the wiki. 30+ notes you keep forgetting, ingested into a linked wiki with an index, the Karpathy pattern. The AI follows a trail instead of guessing. Level 3: semantic search. When you search different words than you wrote and it whiffs, vector search matches by meaning, not exact words. Level 4: the knowledge graph. When you need to trace relationships, this person works at that company that competes with this one, you add typed connections, not just backlinks. Level 5: autonomous. An always-on brain that refreshes itself while you sleep, like Garry's. The top, but not automatically best. More context can do more harm than good. The real lesson: higher isn't better. Find the lowest level that fixes a pain you actually have. And your vault doesn't have to be one level, one folder can be level 2 while another is level 4. Full step-by-step build of the Claude + Obsidian second brain in the article below. Bookmark this

THE GUY WHO RUNS THE ACCELERATOR BEHIND AIRBNB, COINBASE, AND STRIPE OPEN-SOURCED THE EXACT AI SECOND BRAIN HE RUNS HIS BUSINESS ON Garry Tan runs Y Combinator, the startup factory behind Airbnb, Coinbase, Stripe, and 5000 another companies He also runs an AI second brain with 146,000 pages in it, ingesting his meetings, emails, and notes while he sleeps, and he open-sourced it. Repo: /garrytan/gbrain But you don't start there. Here are the five levels, simplest to most complex: Level 1: routing. A CLAUDE.md that acts as a map telling the AI where things live, plus a few markdown folders. You find things by exact name. Most people never actually need more than this. Level 2: the wiki. 30+ notes you keep forgetting, ingested into a linked wiki with an index, the Karpathy pattern. The AI follows a trail instead of guessing. Level 3: semantic search. When you search different words than you wrote and it whiffs, vector search matches by meaning, not exact words. Level 4: the knowledge graph. When you need to trace relationships, this person works at that company that competes with this one, you add typed connections, not just backlinks. Level 5: autonomous. An always-on brain that refreshes itself while you sleep, like Garry's. The top, but not automatically best. More context can do more harm than good. The real lesson: higher isn't better. Find the lowest level that fixes a pain you actually have. And your vault doesn't have to be one level, one folder can be level 2 while another is level 4. Full step-by-step build of the Claude + Obsidian second brain in the article below. Bookmark this

Yarchi

51,691 views • 25 days ago

Personal AGI is 3-6 months away. I'm already living in it. Here's my Obsidian setup: - Obsidian vault built since November 2025 - Markdowns about every person, project, and task - Limitless mic pulling daily transcripts straight in - Agents that read all of it before every task Obsidian is: - A second brain for you - A first brain for your agents My agents have full context before every task. That's the whole game.

Personal AGI is 3-6 months away. I'm already living in it. Here's my Obsidian setup: - Obsidian vault built since November 2025 - Markdowns about every person, project, and task - Limitless mic pulling daily transcripts straight in - Agents that read all of it before every task Obsidian is: - A second brain for you - A first brain for your agents My agents have full context before every task. That's the whole game.

The Startup Ideas Podcast (SIP) 🧃

30,065 views • 2 months ago

Stop doom scrolling for a second & reset your brain with some relaxing ai asmr glass fruit cutting. Drink some water before you scroll 👀

Stop doom scrolling for a second & reset your brain with some relaxing ai asmr glass fruit cutting. Drink some water before you scroll 👀

𝐀𝐥𝐞𝐱𝐚 𝐂𝐨𝐥𝐞 🪽¹¹:¹¹ 🪽

15,691 views • 1 year ago

𝗧𝗵𝗶𝘀 𝗶𝘀 𝘄𝗵𝗮𝘁 𝗮 $𝟬 𝘀𝗲𝗰𝗼𝗻𝗱 𝗯𝗿𝗮𝗶𝗻 𝗯𝘂𝗶𝗹𝘁 𝗶𝗻 𝟭𝟬 𝗺𝗶𝗻𝘂𝘁𝗲𝘀 𝗹𝗼𝗼𝗸𝘀 𝗹𝗶𝗸𝗲: It never forgets anything and it's fully free to build, Claude + Obsidian, how it works: > Drop in a PDF, a URL, a transcript, anything, claude builds and maintains a living wiki for you. Extracts concepts, creates pages, links everything together. 𝗬𝗼𝘂 𝗱𝗼𝗻'𝘁 𝘁𝗼𝘂𝗰𝗵 𝗮 𝗳𝗼𝗹𝗱𝗲𝗿, 𝗮 𝘁𝗮𝗴, 𝗼𝗿 𝗮 𝗹𝗶𝗻𝗸, 𝗵𝗲𝗿𝗲'𝘀 𝘁𝗵𝗿𝗲𝗲 𝗰𝗼𝗺𝗺𝗮𝗻𝗱𝘀 𝗿𝘂𝗻 𝘁𝗵𝗲 𝘄𝗵𝗼𝗹𝗲 𝘁𝗵𝗶𝗻𝗴: > /wiki - initializes your second brain > /save - files key ideas from any conversation automatically > /autoresearch - deep research, cited, cross-referenced to everything you already know Open Obsidian's graph view after a few weeks and see a map of everything you've ever read and thought, concepts cluster and ideas connect. This is the future of knowledge work and it costs nothing.

𝗧𝗵𝗶𝘀 𝗶𝘀 𝘄𝗵𝗮𝘁 𝗮 $𝟬 𝘀𝗲𝗰𝗼𝗻𝗱 𝗯𝗿𝗮𝗶𝗻 𝗯𝘂𝗶𝗹𝘁 𝗶𝗻 𝟭𝟬 𝗺𝗶𝗻𝘂𝘁𝗲𝘀 𝗹𝗼𝗼𝗸𝘀 𝗹𝗶𝗸𝗲: It never forgets anything and it's fully free to build, Claude + Obsidian, how it works: > Drop in a PDF, a URL, a transcript, anything, claude builds and maintains a living wiki for you. Extracts concepts, creates pages, links everything together. 𝗬𝗼𝘂 𝗱𝗼𝗻'𝘁 𝘁𝗼𝘂𝗰𝗵 𝗮 𝗳𝗼𝗹𝗱𝗲𝗿, 𝗮 𝘁𝗮𝗴, 𝗼𝗿 𝗮 𝗹𝗶𝗻𝗸, 𝗵𝗲𝗿𝗲'𝘀 𝘁𝗵𝗿𝗲𝗲 𝗰𝗼𝗺𝗺𝗮𝗻𝗱𝘀 𝗿𝘂𝗻 𝘁𝗵𝗲 𝘄𝗵𝗼𝗹𝗲 𝘁𝗵𝗶𝗻𝗴: > /wiki - initializes your second brain > /save - files key ideas from any conversation automatically > /autoresearch - deep research, cited, cross-referenced to everything you already know Open Obsidian's graph view after a few weeks and see a map of everything you've ever read and thought, concepts cluster and ideas connect. This is the future of knowledge work and it costs nothing.

Defileo🔮

52,754 views • 3 months ago

THIS IS KARPATHY'S OBSIDIAN VAULT, THE BRAIN BEHIND A MILLION-DOLLAR COMPANY This is every idea, every decision, and every connection one person has made over years of work, visualized in real time. The human brain processes up to 11,000,000 bits of information per second, but consciously uses only 50. Inside this network: → thousands of nodes → hundreds of active links between ideas → 140+ decision-making processes per hour of work → years of compressed thinking living inside a single system ♻️ Repost + Comment "BRAIN" I will DM you the Complete Guide. make sure to bookmark it before it gets lost in your feed

THIS IS KARPATHY'S OBSIDIAN VAULT, THE BRAIN BEHIND A MILLION-DOLLAR COMPANY This is every idea, every decision, and every connection one person has made over years of work, visualized in real time. The human brain processes up to 11,000,000 bits of information per second, but consciously uses only 50. Inside this network: → thousands of nodes → hundreds of active links between ideas → 140+ decision-making processes per hour of work → years of compressed thinking living inside a single system ♻️ Repost + Comment "BRAIN" I will DM you the Complete Guide. make sure to bookmark it before it gets lost in your feed

Hamza Khalid

41,680 views • 1 month ago

You should wake up grateful every day that your child isn't sick. You should appreciate every second you don't have to have a conversation like this with your child. While I have you here, please check out my pinned post.

You should wake up grateful every day that your child isn't sick. You should appreciate every second you don't have to have a conversation like this with your child. While I have you here, please check out my pinned post.

9mmSMG

149,963 views • 7 months ago

I genuinely don't understand why everyone isn't using this yet. Andrej Karpathy, OpenAI co-founder, posted a simple idea that went massively viral: 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. Claude reads it, links it, 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: 1) Install Obsidian 2) Create a vault 3) Open it in Claude Code 4) Paste Karpathy's wiki idea and tell Claude to build it 5) Claude makes three folders: - raw (for sources) - wiki (for its pages) - CLAUDE. md (that runs it) 6) Drop any source into raw and say: "ingest this" 7) Ask questions across everything, forever Five minutes to set up and you never start from a blank chat again. Full step by step guide below.

I genuinely don't understand why everyone isn't using this yet. Andrej Karpathy, OpenAI co-founder, posted a simple idea that went massively viral: 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. Claude reads it, links it, 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: 1) Install Obsidian 2) Create a vault 3) Open it in Claude Code 4) Paste Karpathy's wiki idea and tell Claude to build it 5) Claude makes three folders: - raw (for sources) - wiki (for its pages) - CLAUDE. md (that runs it) 6) Drop any source into raw and say: "ingest this" 7) Ask questions across everything, forever Five minutes to set up and you never start from a blank chat again. Full step by step guide below.

CyrilXBT

320,753 views • 23 days ago