This introduction presents an overview of key concepts discussed in the subsequent chapters of this book. The book moves from the political anthropology that Benjamin describes to the political temporality of factical finitude which is the condition of possibility to which the political anthropology of the Trauerspiel gives expression. Biopolitics of security in the twenty-first century, summarises Foucault's account of biopolitics in order, then transforming the very ways in which the vital signs of life have been transformed by molecularisation and digitalisation, its very species being translated by these cognate processes into code, Life thus transformed transforms the operation of the biopolitics of Life. The book begins with an account of how the modern sovereign consists in a task it is constitutively incapable of discharging, so also it ends with how contemporary biopolitics of security also consists now in a task that it is constitutively incapable of discharging.