Why is it that we know something but don’t act accordingly? This question becomes urgent in the face of issues that require immediate action, like global-warming, meat-production, exploitative working conditions, sexual violence, racism. “Death is a master from Germany,” the poet Paul Celan wrote – given the long denial of the death-camps, we could also say: “Denial is a master from Germany.” This class traces a series of catastrophic (quasi-)events in German history and discusses global analogues. We will also turn our attention to conspiracy-theories, i.e. large-scale communities of denial that affirm alternative realities.