Module I·Article I·~1 min read
System 1 and System 2: Two Modes of Thinking
Cognitive Biases
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Two Ways of Thinking
Daniel Kahneman described two modes of thinking that govern our decisions:
System 1 is fast, automatic, emotional, associative. It operates effortlessly and almost beyond our control. It answers the question “2+2?” instantly. It assesses threats before we even consciously perceive the situation.
System 2 is slow, reflective, logical, requires effort and attention. It handles “17×24?”, analyzes complex arguments, manages behavior in unfamiliar situations.
Key Discovery
Most of our decisions are made by System 1, while System 2 merely “rationalizes” them after the fact. We are convinced that we are reasoning—but in reality, we are reacting to emotions, images, and heuristics.
When System 1 Makes Mistakes
System 1 was shaped by millions of years of evolution for survival in a simple environment. It poorly handles:
- Probabilities and statistics
- Long-term consequences
- Non-standard situations
- Complex trade-offs
In business: Managers convinced of their analytical skills often make decisions based on intuition, and then select justifications afterward.
Practical Implications
Negotiations: First impressions, tone of voice, and physical comfort in the meeting room—all these influence decisions through System 1.
Hiring: Interviewers decide “like/dislike” within the first 30 seconds, then look for confirmation.
Investments: Fear and greed—emotions of System 1—destroy portfolios.
How to Activate System 2
- Slow down: “Am I sure I have thought this through well?”
- Pre-mortem: Before making a decision, imagine it has already failed and find the reasons.
- Checklists: Structure analysis, do not rely on memory.
- External perspective: Involve a person without emotional involvement.
Practical Assignment
Recall an important decision you made in the last 3 months. (1) How was it made: quickly (System 1) or after analysis (System 2)? (2) What prompted this choice? (3) What data did you ignore? (4) What would have changed if you had deliberately activated System 2?
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