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The public sphere is an area in social life where individuals can come together to freely discuss and identify societal problems, and through that discussion influence political action. It is "a discursive space in which individuals and groups congregate to discuss matters of mutual interest and, where possible, to reach a common judgment."
See also: G. T. Goodnight, "The Personal, Technical, and Public Spheres of Argument." Journal of the American Forensics Association. (1982) 18:214-227.
The public sphere can be seen as "a theater in modern societies in which political participation is...