If I remember correctly, the book also described another phenomenon where if the guessers were allowed to see everyone else's guesses, there was a good chance t

If I remember correctly, the book also described another phenomenon where if the guessers were allowed to see everyone else's guesses, there was a good chance that everyone else would end up guessing closer to what the first few people guessed. This decreased the accuracy of the crowd because it placed higher weight on the first couple guesses and removed most of the variance in the guesses resulting in decreased accuracy.