Jameson’s postmodernism account lacks positive historical specificity

Evidence

The reader might, however, quite reasonably demand a positive account of the nature of modernity and of the Modernist art which is presumably its critical reflex. I attempt to meet this demand in chapter 2, and to do so in a way that, unlike the postmodernist theories critically surveyed in this chapter, gives its proper due to the historical specificity of the phenomena under examination. — Alex Callinicos, Against Postmodernism, 134