The distinction between

premodern, modern, and postmodern can be expressed semiotically in terms of the relative stability of the sign.

As long as knowledge is grounded in sacred revelation, the sign is a sacred symbol.

After the post-Renaissance triumph of humanism, there follows a modern interregnum during which the signifier is dislocated from its metaphysical referent and the sign is reduced to a convention. In visual art this is most pointedly evident in Cubism and what  descends from it, collage in particular.  Symbolism, and later on, surrealism, discover the “poetic” potentiality of this semiotic disarray. The most banal, ubiquitous signifiers encountered in everyday life are then found to be charged with myriad repressed meanings. Signs become symptoms.

Postmodernity marks the full disintegration of the sign, a semiotic psychosis. The sign is reduced to the concrete signifier, at once hyperreal and mesmerizing but, like the glittering mirror panels that clad postmodern buildings, lacking depth or interiority. The signifier becomes a “floating signifier,” which as Frederic Jameson noted, absorbs rather than bestows meaning. It is stupefyingly blank, brazen in its banality, unsettling in its aggressive shallowness. In place of the modernist investment in the sign’s excessive meaning, postmodernism emphasizes the sign’s abject poverty. The violent contrasts that define the surrealist marvelous are replaced by an undifferentiated aggregation of dead signifiers. Henceforth, anything can mingle with anything else. This is heralded as a democratizing of the image, a demolition of the distinction between “high” and “low.” In reality, this levelling project is a means to give the banal its mirrored surface, turning emptiness into fulness. This is how the readymade becomes the paradigmatic postmodernist invention.

Current woke virtue signaling is a desperate effort to reinvest the sign with unambiguous meaning. Dead traditions are turned on their head and reinvented as liberal pieties. Lameness and imaginary blasphemy (directed at canons and traditions long extinct) become cherished signs of hallowed marginality.  This is not a novel phenomenon. In the words of Sophocles “evil appears as good in the minds of those whom god leads to destruction."