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🧠Cognitive Science·15 min·Sample Lesson

Decision Making

You make THOUSANDS of decisions each day, mostly without noticing. What to wear. What to eat. Who to text. When to cross a street. Daniel Kahneman (Thinking, Fast and Slow) divided thinking into TWO SYSTEMS. SYSTEM 1: fast, automatic, emotional, intuitive. SYSTEM 2: slow, deliberate, logical, effortful. Both have uses. Both can fail.

When each shines. SYSTEM 1: fine for routine, low-stakes choices. Skilled experts (chess grandmasters, ER doctors) develop powerful System 1 intuitions. SYSTEM 2: better for novel, complex, high-stakes decisions. Slows you down enough to consider alternatives. Most everyday errors come from using System 1 when System 2 was needed (e.g., quick stereotyping, snap purchases).

You're making a major life decision (college, job offer, big purchase). Which system should DOMINATE?

Improving decisions. (1) Recognize when you're emotional — pause before deciding. (2) Consider the OPPOSITE — what would change your mind? (3) Use a checklist for repeated important decisions. (4) Distinguish OUTCOMES from QUALITY of decision (a good decision can have a bad outcome; this is the world's randomness). (5) Track decisions and review them. Better-decisions skills compound over a lifetime.

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Pre-Mortem

Before any big decision, imagine it failed: what went wrong? Walking through this BEFORE deciding helps you spot risks early. Researchers call it a "pre-mortem" — and it consistently improves decision quality.

Decisions accumulate to make your life. Better decisions, day after day, are one of the most underrated paths to a better future.

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