Much of "postmodern" critical theory is insightful, interesting, and, I would argue, necessary: we absolutely must commit ourselves to deconstructing the mechanisms of hegemony, demolishing totalizing images and narratives that do violence to ourselves and others, and we must recognize that there can be no end to our work, and no final victory, only vigilance.
Be that as it may, such theory is, to my mind—and for a dozen excellent reasons—often short on hope. Survival of the Fireflies is different.
Georges Didi-Huberman has written a short, ambitious book that engages Agamben, Arendt, Benjamin, Dante, Derrida, Ernesto De Martino, Pasolini, and others in a rigorous, if not always convincing, attempt to articulate a means by which human beings can fashion a foundation of hope capable of anchoring and sustaining them even in an age of mechanized violence and perpetual catastrophe.
Whether or not you find his arguments compelling, though, is, I think, rather beside the point, because Fireflies' greatest value lies not in Didi-Huberman's considerable critical acumen, but in the example he sets for those of us intent on living and thinking with rigor and integrity in an age characterized by atrocity and horror. He has the audacity to risk both the censure of his colleagues, and the ire of god's anointed, and make a case for human hope and human value without taking recourse to a conveniently omniscient and inscrutable deity. And given the perpetually impending catastrophe that forms the backdrop of contemporary life, the obscene and immeasurable violence inextricable from the global neoliberal capitalist projects that govern our existence, the ongoing exploitation of humanity by human beings, and our species' unfathomable commitment to destroying our planet, I'd say Didi-Huberman's project is more important than ever.