I Built a Self-Updating SEO Brain Inspired by Andrej Karpathy's LLM Wiki

The Tweet That Changed How I Think About AI + Knowledge In early April 2026, Andrej Karpathy (OpenAI co-founder, former Tesla AI Director) posted something deceptively simple: "Something I'm finding very useful recently: using LLMs to build personal knowledge bases for various topics of research interest." He followed it up with a GitHub gist titled LLM Wiki an "idea file" describing a pattern for building knowledge bases that actually compound over time instead of rediscovering the same information on every query. I decided to build it for a real production problem.