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Explore RAG is Dead? Karpathy's New Obsidian + Claude Setup, Explained! with 12,269 views, 241 likes, and 14 comments. Experience the impact of this video content that has captured audience attention.

I tried Andrej Karpathy's second brain setup for a month. Claude + Obsidian, no RAG, no vector database. In this video I build the entire LLM wiki from scratch with you: Obsidian vault, Karpathy's exact prompt, Claude Code indexing everything, and an agent that writes my blogs and posts them to Medium, Substack and X with computer use. We also answer the real question: is RAG dead? I break down how RAG actually works (chunking, embeddings, reranking) in plain english, and why the wiki pattern wins for personal use. But the wiki is a graph, and that's the deeper lesson: memory needs relationships and time, not just similar chunks. It's the same reason I'm building HydraDB, a graph-native memory layer that brings this pattern to production scale, where Obsidian + Claude stops working and thousands of users are reading and writing every second. Karpathy's prompt: https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f HydraDB: http://singhinusa.link/hydradb Chapters: 0:00 The new wave after RAG 1:07 How RAG actually works (explained simply) 5:15 Why everyone is talking about Obsidian + Claude 6:26 Building the second brain from scratch 12:51 Claude writes my blogs (with images) 13:36 Posting to Medium, Substack, X with computer use 17:20 Is RAG dead? 18:43 Scaling the pattern to thousands of users Tools used: Obsidian, Claude Code, Codex, Whisperflow, HydraDB Follow my builder journey - https://x.com/iHarnoorSingh 📕 Only book Software Developers need for Interviews: https://geni.us/EJHuJ 🤝 My Socials & Gear & Recommendations & Newsletter: https://singhinusa.com 💰 Sponsor Me: https://singhinusa.link E-mail for BUSINESS INQUIRY & HELP- [email protected]

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