Feynman Technique

One-Line Definition

Explain complex concepts in the simplest language — if you can’t explain it clearly, you haven’t truly understood it.

Core Concept

The Feynman Learning Technique consists of four steps: Choose a concept → Try to teach it to someone else in simple language → Identify where you get stuck → Go back to the original material and re-learn → Simplify your explanation.

What Problems It Solves

When information is incomplete, options are numerous, or risks are unclear, it helps pull your judgment from intuition back to structured analysis. More specifically, the Feynman Technique is suitable for answering questions like: How can I better understand the current situation? How can I make more reasonable judgments and take action?

When to Use

• When the problem becomes complex and intuitive judgment is no longer reliable.
• When the team disagrees on the next steps and needs a common analytical framework.
• When you need to turn abstract judgments into concrete actions, checklists, or experiments.
• When the effectiveness of current practices declines and you need to re-examine the underlying logic.

When NOT to Use

• The problem is simple, and direct execution is more important than analysis.
• Lack of basic facts, only spinning concepts without grounding.
• Using the model only to justify existing conclusions rather than help revise judgment.

Summary

Teaching is the best way to learn. Only when you can explain it clearly in words a primary school student can understand have you truly grasped it.