How do I practice writing clarity?

Pick one concept you believe you understand well — a technical system, a business strategy, a philosophical idea. Set a timer for 10 minutes. Write a 200-word explanation of it for someone with no background in the topic. No jargon, no hand-waving, no 'you know what I mean.' When the timer stops, go back and mark every sentence where you hesitated, used vague language, or skipped a step. Those marks are not writing problems. They are understanding problems.

Common pitfall: Avoiding writing about topics you 'already understand' — which protects the illusion of understanding from ever being tested. The most dangerous knowledge gaps are in subjects you feel confident about, because confidence removes the motivation to verify. You will selectively write about things you're unsure of and skip the things where the illusion is strongest.

This practice connects to Perception and Externalization — building it as a repeatable habit compounds over time.