echo chamber

echo chamber (plural echo chambers)

1. A room or other enclosed space that is highly conducive to the production of echoes, particularly one that has been designed and built for this purpose.
2. (music production) A sound effect that may be applied to live or recorded sounds through a sound editing process, which creates the impression that the sounds originated in an enclosed space which was conducive to producing echoes or echoing.
3. (by extension) An environment in which a person is exposed to only those beliefs and opinions that agree with their own, so that their existing views are magnified and reinforced while alternative ideas are not expressed or considered.

   Coordinate terms: groupthink, filter bubble, peer pressure, conformity bias

   • 2007, Susan Faludi, The Terror Dream: Fear and Fantasy in Post-9/11 America:

     But it would resound in the conservative media's echo chamber.

   • 2020 March 19, Shola Lawal, quoting Dana Fisher, “Coronavirus Halts Street Protests, but Climate Activists Have a Plan”, in New York Times‎:

     “What you’re going to end up doing is amplifying within an echo chamber, which is really different from what the movement wants,” said Dana Fisher, a professor of sociology at the University of Maryland whose research focuses on activism.

   • 2021 April 15, Cade Metz, “Feeding Hate With Video: A Former Alt-Right YouTuber Explains His Methods”, in The New York Times‎, →ISSN:

     The videos were tailored for the “echo chamber” that is often created by social media networks like YouTube. To keep you watching, YouTube serves up videos similar to those you have watched before.

• (environment which validates a limited set of ideas and feelings): circle jerk (vulgar), filter bubble, hugbox (offensive), mutual admiration society

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• Echo chamber on Wikipedia.Wikipedia
• Echo chamber (media) on Wikipedia.Wikipedia