Building a Second Brain: From Concept Based on Karpathy's Tweet to a Compound Engineering Loop
Since I read Andrej Karpathy’s viral tweet back in April, I’ve wanted to tackle building a ‘second brain’ where an LLM handles the organization, thinking, and maintenance. For as long as I can remember, I’ve had the consistent urge to streamline all that I consume across articles, newsletters, posts, Tweets, YouTube videos, and everything in between. I even created a separate Household Manager harness to manage everything across our family and household. While my Rube Goldberg machine of cobbled-together processes and tools worked alright, the room for improvement grew starker as I learned about implementations that “rode the latest AI model” capabilities. The gap was sharpest around continual improvement that compounds over time: a system that gets smarter with everything you feed it, instead of starting over from zero each session. ...