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Decision Making · Facts
Studies on the 'hot-cold empathy gap' show your sober self literally cannot predict what your hungry, exhausted or furious self will pick. The two are different decision-makers.
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An Israeli study found favourable rulings dropped from ~65% to near 0% across a session — and reset after food breaks. Decision fatigue is real and brutal.
The 'paradox of choice' shows people facing 24 jam flavours buy less and feel worse than those facing 6. Beyond a small number, options paralyse instead of empower.
Philosopher Ruth Chang argues prolonged ties signal equivalence. The cost of deliberation usually exceeds the difference between the choices.
Unconscious processing during sleep integrates information your awake brain couldn't hold simultaneously. Studies find post-sleep choices are rated higher months later.
Same Western culture, similar wealth and laws — but one country lists 'donor' as the default and the other doesn't. Pre-checked boxes quietly run the world.
Decision quality drops a measurable 30% after each big call you make. By 4pm your CEO brain is making 9am-intern decisions. Front-load the hard stuff.
Reversible decisions deserve speed, not deliberation. Irreversible ones deserve obsession. Confusing the two — slow on small calls, fast on permanent ones — sinks careers.
You don't decide with the coin — you decide in the half-second after it lands, when relief or disappointment surfaces. The coin is just a brain-scan tool.
The brain segments memory by location, so crossing thresholds quietly clears the buffer. That is why you forget what you came in for — the room, not your age.
Decision fatigue is a finite budget. Obama wore only blue or grey suits; Zuckerberg owns a closet of identical T-shirts. Trivial choices steal big-choice fuel.
Group brainstorms suffer from production blocking, evaluation anxiety and social loafing. The fix: write silently first, share second. Almost no team does this.
First framing dominates. Smart leaders ask the most junior person to speak first — opposite of natural order — to keep the room's thinking from collapsing too fast.
The trap isn't bad goals — it's medium-good ones quietly stealing time from great ones. The discarded 20 are the dangerous ones, not the rejected hundred.
Choice architecture beats willpower every time. Moving the salad to eye level and the fries behind glass changes cafeteria orders by 30-50% without a single rule.
His regret-minimization framework asks future-you, not current-you. The 80-year-old never says 'I wish I'd stayed at the safe job'. They always say the opposite.
Once a plan is announced, abandoning it feels worse than crashing. The bias has a name in aviation because it keeps killing pilots who 'should have gone around'.
Decision time grows with the logarithm of options. Real-world consequence — restaurants with 8 mains earn more than ones with 30. Cognitive cost is real money.
Trying to find THE optimal apartment, partner or laptop guarantees regret — there's always a hidden better one. Satisficers pick 'good enough' and move on.
It treats one reason as one weight, ignoring that a single huge factor outweighs ten tiny ones. Imagining the best-case and worst-case scenarios outperforms it.
The 10-minute view exposes flinching. The 10-year view exposes drifting. Most choices that feel hard now will feel either obvious or invisible by year ten.
Cognitive load drops impulsive spending by 40% across a single night. Retailers know this — that's why every checkout page has a flashing countdown timer.
Parkinson's law: work expands to fill available time. A self-imposed Friday cutoff for a 'sometime next month' task is worth more than any productivity app.
Gilovich's regret studies find action-regrets fade with time as we rationalize them. Inaction-regrets quietly grow — every year adds another version of 'what if I had'.
Kahneman calls it the single most useful planning tool. Imagining failure unlocks doubts the team is too polite to raise — surfaces 30% more risks than optimism.