Echo chamber (media)

Uncommon card · No. 139806

In the context of news media and social media, an echo chamber is defined as an environment or ecosystem in which participants encounter beliefs that amplify or reinforce their preexisting beliefs, by communication and repetition inside a closed system and insulated from rebuttal. The echo chambers function by circulating existing views without encountering opposing views, potentially leading to three cognitive biases: correlation neglect, selection bias and confirmation bias. Echo chambers may increase social and political polarization and extremism. On social media, it is thought that echo chambers limit exposure to diverse perspectives, and also favor and reinforce presupposed narratives and ideologies. The term “echo chamber” originally comes from acoustics, where it describes a space in which sound waves bounce around and repeat, amplifying the original noise. In media and communication studies, the term has been adapted to describe environments where ideas and beliefs are repeated...

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