Non-intuitive insightful stuff - certainly worth reading. A good case is made for why diverse groups in knowledge, expertise and experience, etc. perform better than homogeneous group, even a group of experts, in making predictions and finding solutions. The types of problems that can be addressed by groups (cognition, coordination, and cooperation) and the best framework for accurate results.
Practical examples from historical problems including the space shuttle accident, 9/11 intelligence gathering, finding a lost US Navy sub filled with nuclear warheads, stock market bubbles and crashes, etc.
Some useful information on why and how prediction markets works.
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