Cheng writes:

…Peggy Phelan launches a brilliant critique against ‘the ideology of the visible’ in her 1993 book Unmarked: the Politics of Performance. Phelan interrogates the ironically similar assumption held by progressives and conservatives alike concerning the equation between representational visibility and political efficacy. Because of a mistaken judgement about ‘the relation between the real and the representational,’ Phelan diagnoses, both groups believe that ‘greater visibility of the hitherto under-represented leads to enhanced political power.’ Thus, progressives promote a greater circulation of visibility for the racial, ethnic and sexual others in the representational economy, whereas conservatives dedicate themselves to defaming or censoring such a circulation. Phelan maintains that the tactics used by both groups reflect insufficient understanding ‘of the relationship between visibility, power, identity and liberation.’ ‘If representational visibility equals power,’ Phelan comments wryly, ‘then almost-naked white young women should be running Western culture. The ubiquity of their image, however, has hardly brought them political or economic power.’

Visibility is relevance, and relevance is reality: “we need to convince our friends that we are real and that our desires and rage are real.” Ergo, the degree to which one is “real” is the degree of visibility one has.

from here:
http://www.phillyimc.org/en/we-become-powerful-shared-moments