# Andrej Karpathy: "The value of the system is in the edges, not the nodes." In...
Canonical: https://social-archive.org/yena/uJyxma6RJN
Original URL: https://x.com/0xObssnnn/status/2070683754025177238
Author: obssnnn
Platform: x
## Content
Andrej Karpathy: "The value of the system is in the edges, not the nodes." In a short field note, he lays out 9 rules for a knowledge base that maintains itself. Claude keeps the notes. Obsidian shows the graph. 3 layers, 3 owners. raw belongs to you and never gets edited. wiki belongs to the model. 1 schema file holds the rules for both. This isn't RAG. RAG re-derives the answer every query and keeps nothing. Here your sources compile once into linked pages and compound. You feed 1 source at a time. The model files it, links it, updates every neighbor it touches. Start with 10 sources, not 10,000. More useful than a $500 PKM course. Save this. Claude + Obsidian stops being a folder. It becomes a second brain.