Chapter 10Summary
Chapter 10 focuses on how people tend to believe they are above average. Hallinan sites many examples of this: golfing, and credit card rates. Hallinan then discusses calibration, the difference between a person’s actual and perceived abilities. He discusses that calibration tends to be poor, but weather forecasts are well calibrated. The power of feedback is also discussed.
Hallinan also notes that as a task gets harder, people tend to be even more overconfident.
Chapter11
Summary
In chapter 11, Hallinan discusses how even professionals have difficulty in knowing how good or bad they are at something. He also discusses how experts become experts by practicing, starting at a young age and creating a library of specialized knowledge within the mind.
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