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Open Thinking, Fast and Slow
Thinking, Fast and Slow cover

Thinking, Fast and Slow

Daniel Kahneman • 2011

72 pages155 min

The book “Thinking, Fast and Slow” explores two systems of thought: System 1 (fast, intuitive, emotional) and System 2 (slow, deliberative, logical). It reveals how System 1 often generates automatic judgments and heuristics that lead to systematic biases and errors, while the "lazy" System 2 frequently fails to override or correct these intuitions. The text details various cognitive biases like the availability heuristic, representativeness, anchoring, loss aversion, and the endowment effect, demonstrating how they influence decision-making in personal and professional life. The author contrasts rational "Econs" with error-prone "Humans" and discusses the "two selves" – the experiencing self and the remembering self – whose perspectives on happiness and pain often diverge, highlighting the pervasive irrationality in human judgment and choice, and advocating for institutional checks and a better understanding of these cognitive mechanisms to improve decision-making.