The Feynman Technique and Speaking Practice

The Feynman Technique is named after the Nobel Prize-winning physicist Richard Feynman, who was known for his ability to explain complex ideas in remarkably simple terms. The technique is based on a straightforward principle: if you cannot explain something in plain language, you do not fully understand it.

This article explores how the Feynman Technique works and how speaking practice makes it even more effective.

The four steps of the Feynman Technique

Step 1: Choose a concept

Pick something you want to learn. It could be a scientific principle, a historical event, a business model, or a philosophical argument.

Step 2: Explain it in plain language

Write or speak an explanation as if teaching someone who knows nothing about the topic. Use simple words. Avoid jargon. Be concrete.

Step 3: Identify gaps

Your explanation will reveal places where you cannot make the idea clear, where you resort to vague language, or where you simply do not know enough. These are gaps in your understanding.

Step 4: Review and simplify

Return to your source material. Focus on the gaps. Then try explaining the concept again, more simply than before.

Why speaking enhances the Feynman Technique

The classic Feynman Technique is usually described as a writing exercise. But speaking adds a powerful dimension:

• Speaking is less forgiving — when you write, you can edit mid-sentence. Speaking forces you to commit and move forward, which reveals gaps more honestly.
• Speaking reveals hesitations — the moment of silence before a word you cannot find tells you something about your understanding that writing would not.
• Speaking builds fluency — the goal is not just to know the concept but to be able to explain it naturally in conversation.

A practical approach

1. Pick a concept from your current study material.
2. Set a short timer — enough time to explain the core idea concisely.
3. Speak your explanation out loud, as if to someone who has never heard of the concept.
4. Listen back or review what you said (from memory or notes).
5. Identify the part of your explanation that was weakest.
6. Hit the source material again.
7. Try once more, aiming for a simpler explanation.

What to look for during self-review

After each attempt, ask yourself:

• Did I use any jargon I did not define?
• Is there a simpler word that could replace a complex one?
• Did I skip a step because I was not sure about it?
• Could someone truly understand this from my explanation alone?

Why this technique works

The Feynman Technique works because it forces you to process information actively rather than passively. When you read or listen, it is easy to mistake recognition for understanding. When you explain, you quickly discover whether your understanding is real or superficial.

Feynman himself once said, "I could not reduce it to the freshman level. That means we really do not understand it." The same test applies to any learner, at any level.

Making it a habit

The Feynman Technique is not something you do once. It is a habit that deepens understanding over time. Consider incorporating it into your regular study routine:

• After reading a chapter, explain the main idea out loud.
• Before a discussion or tutorial, explain your key argument.
• When preparing for an exam, explain each major topic — and keep going until you can do it simply.

Pitchroom is an iOS app that provides timed speaking sessions for this kind of practice. It offers a quiet space for the Feynman Technique — pick a topic, speak, and reflect on what you said.