There are four essential capabilities that we can rely on a Second Brain to perform for us: Making our ideas concrete. Revealing new associations between ideas. Incubating our ideas over time. Sharpening our unique perspectives.

What Is a Second Brain?

Instead of organizing ideas according to where they come from, I recommend organizing them according to where they are going—specifically, the outcomes that they can help you realize.

This digital commonplace book is what I call a Second Brain. Think of it as the combination of a study notebook, a personal journal, and a sketchbook for new ideas. It is a multipurpose tool that can adapt to your changing needs over time. In school or courses you take, it can be used to take notes for studying. At work, it can help you organize

There are four essential capabilities that we can rely on a Second Brain to perform for us: Making our ideas concrete. Revealing new associations between ideas. Incubating our ideas over time. Sharpening our unique perspectives.