This refers to the work of French philosophers such as Jacques Derrida, Michel Foucault, Gilles Deleuze, and Jean-Francois Lyotard, who were prominent in the 1960s and 1970s. These thinkers were interested in breaking down traditional oppositions and binaries, such as subject/object, inside/outside, and presence/absence. They also emphasized the role of power relations in shaping social structures and identities.