Idea Ripper // ArchiveCards: 1555 [Live] | Updated: 2026-10-14
Card #c1283IR // #c1283Synthesis

"If you put a forecast way above everyone else and the number comes in low, you look stupid. If you submit a forecast just a bit higher than everyone else, then no matter how strong the number is, you look smart!" "Herding around the mean is rational if you want to avoid looking stupid or getting fired, but as a market professional you need to be aware that the data is not clustered the way the forecasts imply."

— In our words · Source: Trade Outside the Box (Brent Donnelly)

[Use when]

You're treating a tight consensus of expert forecasts as a measure of real uncertainty.

[Why it matters]

Economists shade their forecasts toward the consensus, so the range of published estimates is narrower than the range of real outcomes. Actual surprises are bigger and more frequent than the clustered forecasts suggest.

More from Trade Outside the Box

#c1278"Keynes asks us to imagine a newspaper which holds a contest where readers are rewarded for choosing which contestant will be chosen by the…You're right on the merits and need to predict how a crowd, market or committee will actually decide. #c1279"Younger children, or those without a fully developed Theory of Mind, will say that James will say: “pencils,” because they are unable to…You're sure the other side must see what you see. #c1280"There is a market aphorism that says: Early is the same thing as wrong." "You underperform as you wait for your dream trade to come true…You're about to bet against a trend just because it has gone a long way.

Same situation, different book

#c1232The brain jumps to conclusions, paper doesn'tYou're about to make a decision you've only reasoned through in your head.From How to Take Smart Notes #c1216Darwin's golden rule: write down the objection at onceYou're building a case for a plan or a thesis and want the objections in hand before anyone else raises them.From How to Take Smart Notes #c1565The Fourfold Remedy, Desire Triage, and Static vs. Kinetic PleasureUse when auditing your personal burn rate, stripping scope creep from a product roadmap, or breaking the…From Lives of Eminent Philosophers #c1544The Boundless Soul and the Dæmon-Filled WorldUse when diagnosing why smart people locked in private ideological bubbles exhibit rigid, convulsive…From Lives of Eminent Philosophers