If you cannot explain a concept in simple, jargon-free terms to a beginner, you don't truly understand it yet. Using the Feynman Technique—explaining new ideas aloud as if teaching a child—instantly highlights knowledge gaps. 1. Which core concept in your new skill feels confusing or difficult to explain in simple words? 2. How would you teach the main lesson you learned this week to someone with zero background in your field? Action Item: Write a 1-paragraph explanation of your newest concept using plain language and zero technical jargon.