We call a group of fish a school. And there maybe a good reason for that. Researchers found that when 2 fish swim together, they make better decisions than when 2 fish are swimming alone. While the cause for fish’s strength in numbers is not completely understood, humans benefit from group decision making in a similar way. Aggregation works for humans because positive estimates cancel out negative ones. For example, during an election taking the average for an entire body of polls is always more accurate when trying to predict the outcome of an election than using any one poll. So next time you’re faced with a difficult decision try asking the people around you what they think.
Message from fish: Two thinking heads are better than one
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