Feynman-Style Explanation
Analogy → definition → common misconception → self-test
Explain [concept] to me the Feynman way. Order: 1) give an analogy a 10-year-old would get; 2) give the precise definition and point out where the analogy breaks down; 3) name the most common misconception and why it's wrong; 4) give two self-test questions (one basic, one that's easy to get wrong).
How to use
Write down the point where the analogy breaks — that's usually exactly where understanding stops.
Good for
- You have read the same passage three times and still cannot restate it in your own words with the book closed
- You carry a handy analogy (treating opportunity cost as money already spent) and have never tested where it breaks
Not for
- The thing you are about to execute is safety-critical or compliance-bound (dosage, evacuation route), where a distorted analogy turns straight into a wrong action
- You already understand it and only need exact spec (API signature, tax table, syntax details), so a 10-year-old version is pure detour
Example
Input
Opportunity cost — I keep feeling that if no money left my account, there was no cost.
What you get
Expect a testable analogy (the queue you picked costs you the other queue that might have moved faster) plus an explicit statement of where it breaks: opportunity cost includes non-monetary costs and is an ex-ante expectation, not a settled bill. It should then name the misconception no money spent equals no cost and why it is wrong. At least one of the two self-test questions should be a trap, such as whether last year's ad spend counts as a cost of continuing the project.
Common mistakes
- Memorising the analogy and skipping the where-it-breaks step, so the analogy itself becomes the new source of misunderstanding
- Feeding it five concepts at once, which yields generic filler and teaches nothing
Try tweaking it like this
- Add 'use an analogy from my own field (frontend, finance)': the analogy transfers immediately, but watch for cases it hides outside that field
- Change it to 'I explain first, then you fill the four steps I missed': passive listening becomes an active check, at the cost of one extra round