“The unity of the public [...] is [...] ideological. It depends on the stylization of the reading act as transparent and replicable; it depends on an arbitrary social closure (through language, idiolect, genre, medium, and address) to contain its potentially infinite extension; it depends on institutionalized forms of power to realize the agency attributed to the public; and it depends on a hierarchy of faculties that allows some activities to count as public or general, while others are thought to be merely personal, private, or particular.” (Warner, 84)
Michael Warner, Publics and Counterpublics // defining a public

Publics and Counterpublics, Michael Warner
Washington Project for the Arts