 Stiegler's work is influenced by, among others, Sigmund Freud, André Leroi-Gourhan, Gilbert Simondon, Friedrich Nietzsche, Paul Valéry, Edmund Husserl, Martin Heidegger, Karl Marx, Gilles Deleuze and Jacques Derrida.Key themes are technology, time, individuation, consumerism, consumer capitalism, technological convergence, digitization, Americanization, education and the future of politics and human society.Between 1978 and 1983 Stiegler was incarcerated for armed robbery, first at the in Toulouse, and then at the in Muret.