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The Planning Fallacy
Knowing you underestimate how long things take doesn't stop you from doing it. The only known fix isn't better planning. It's using someone else's past, not your own.
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The Thank-You Multiplier
Being thanked doubles how likely you are to help the next person who asks. The effect passes through strangers. It's not the words. It's what they signal.
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The Checklist Effect
When Atul Gawande introduced a simple surgical checklist, complications dropped 36% and deaths dropped 47%. The mechanism isn't information. It's forcing a pause in autopilot.
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The Cognitive Load Tax
Judges grant parole 65% of the time in the morning and nearly 0% by late afternoon. The same decision fatigue is draining your team's best thinking before lunch.
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The Temporal Discounting Trap
People consistently choose $100 today over $120 next month. The same bias explains why teams skip strategy for urgent busywork, and why quarterly goals beat annual ones.
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The Service Recovery Paradox
Customers who complain and get a great recovery become more loyal than customers who never had a problem. The same mechanism works inside organizations.
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The First 45 Days
22% of turnover happens in the first 45 days. It's not an onboarding content problem. It's a belonging signal problem. New hires are scanning every interaction for one thing: do I fit here?
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The Seven-Person Threshold
Every person added to a meeting beyond seven reduces decision quality by roughly 10%. Not because of introversion. Because of math.
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The Mere Exposure Effect
Zajonc's research revealed something counterintuitive: we don't like things because we know them. We like them because we've seen them. Remote workers lose influence not from worse work, but from less visibility.
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The Towel Experiment
Robert Cialdini placed a simple sign in hotel rooms: "75% of guests in this room reused their towels." Reuse rates jumped 26%. The sign cost nothing. The mechanism is social proof.
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The IKEA Effect
Harvard researchers found that people value things they helped create 63% more than identical pre-made versions. This changes how you design every employee program.
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The Loss Aversion Tax
Kahneman and Tversky proved people work twice as hard to avoid losing something as they do to gain something equivalent. Most HR programs ignore this completely.