Don’t know → Read

Don’t understand → Write

Understood → Hands on

What is a Second Brain?

A Second Brain is a personal digital system for storing and managing your important knowledge. Rather than acting as a static storage vault, it serves as an engine for output and creativity—turning raw information into meaningful work.

Why do we need a Second Brain?

Our biological brains are built for thinking, connecting ideas, and problem-solving—not for searching through a massive database of stored facts.

By offloading storage and retrieval to a Second Brain, we free our mind to focus on high-value cognitive work.

Instead of remember everything, take notes in a Second Brain.

Notes = Knowledge Building Blocks

Note is a piece of content that:

• Interpreted through your lens [Perspective]
• Curated according to your taste
• Translated into your own words
• Drawn from your life experience
• Stored in a secure place

The Superpower of Second Brain

• Making our ideas concrete
• Revealing new associations between ideas
• Incubating our ideas over time
• Sharpening our unique perspectives → Perspectives are lacked nowaday

CODE Method

• Capture
• Organize
• Distill
• Express

Capture

• Capture answers for our questions

Organize

• Organize content
• PARA Method
  • Project – Information we use now
  • Area – Information we use it generally
  • Resource – Information we might use later
  • Archive – Inactive items from the first three categories that we no longer need active access to, but want to keep just in case

Distill

• Takes note in our languages. Our lens, taste, words

Express

• Production system.
• If this note can be shared to others, share it.
• Give to Grow