LESSON 5 · Think Like Sherlock
Useful Pattern Recognition
Not all pattern recognition is false. Expert chess players recognize board positions from thousands of games. Experienced doctors spot disease patterns textbooks miss.

The difference between useful and misleading pattern recognition is domain expertise backed by feedback. Chess players get immediate feedback (win or lose). Doctors get test results. Mechanics hear whether the fix worked. Without feedback, pattern recognition drifts into superstition.