The mechanism by which social networks reward users for sharing information is a key reason for the spread of disinformation, according to a study published in the journal PNAS. This conclusion negates previous beliefs that false information is rampant because users lack the critical thinking skills to distinguish truth from falsehood, or because political beliefs distort judgment. The study found that the 15% of users who shared the most information spread 30% to 40% of fake news. What motivates users to share information? It is the reward mechanism of social network. Its reward system encourages users to post and share information. Sharing the most sensational information is most likely to attract attention. Once the habit of sharing information is formed, users no longer consider the possible consequences of false information. Research suggests that social networks can limit the spread of false information by changing reward mechanisms.
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