A Real Second Brain

The idea of a “second brain” is simple. An external place to put thoughts, notes, ideas, and fragments of work, so your actual brain can focus on thinking and deciding instead of remembering. In theory, this is how knowledge compounds instead of disappearing. I have liked this idea for a long time. It is why I used Microsoft OneNote for years, and later moved to Obsidian. What I never liked was how much work these systems require in order to be useful. ...

January 17, 2026 · 2 min · Rami Pinku