As with the industrial revolution of the past, the digital revolution is creating a new economy and a new sensibility, bringing about a radical revaluation of society and its representations. While obsessed with the search for an efficient management of human relations, the new digital capitalism gives rise to an irrational and impulsive Homo numericus prone to an array of addictive behaviours. Far from producing a new agora, social media produce a radicalization of public debate in which hate-filled speech directed against adversaries becomes the norm.