Admitting uncertainty builds trust — or so the argument goes.
Say "I don't know" and people believe you more, the authors tell us. Certainty sounds rehearsed and defensiveness sounds guilty, so confidence in your own ignorance reads as honest.
Then they describe being seventeen, ankle-deep in mud, screaming at a referee about a foul that definitely happened. The kid is wrong, absolutely certain enough to lecture a grown man on his incompetence in front of an audience. The ref is right.
But here's what actually happened. People listened. They believed him. His certainty was magnetic, and no one in that moment thought, "Well, this hyperconfident teenager seems suspicious. Let me discount what he's saying because he's too sure of himself." The anecdote cuts off before the resolution, which is the article's real problem.
Admitting uncertainty does build trust, but only with audiences already trained to reward intellectual honesty. Everyone else hears hesitation as weakness. The same person who learned to say "I don't know" and grew into an epistemically careful adult probably became less persuasive among people who hadn't made that same move. More right, less believed. The article presents this as a pure upgrade, a simple lesson about maturity. It's actually a trade-off disguised as enlightenment. You can be trusted by the careful people, or you can move the crowd, and rarely do you get both.
When you're building something that requires other people to move, you're constantly choosing which audience to trust with your uncertainty. Share doubts with your team and watch their momentum evaporate. Keep the doubts private and watch them undermine every decision you make. The person who learned to say "I don't know" at seventeen didn't gain clarity. They gained a new way to lie.