This talk will introduce the speakers’ new book, The Costs of Connection: How Data Colonizes Human Life and Appropriates it for Capitalism (Stanford University Press, August 2019). Couldry and Mejias argue that the role of data in society needs to be grasped as not only a development of capitalism, but as the start of a new phase in human history that rivals in importance the emergence of historic colonialism. This new “data colonialism” is based not on the extraction of natural resources or labor, but on the appropriation of human life through data, paving the way for a further stage of capitalism. Today’s transformations of social life through data must therefore be grasped within the long historical arc of dispossession as both a new colonialism and an extension of capitalism. Resistance requires challenging in their new material guises forms of coloniality that decolonial thinking has foregrounded for centuries. The struggle will be both broader and longer than many analyses of algorithmic power suppose, but for that reason critical responses are all the more urgent. New forms of solidarity are needed that help build connection on different terms from those currently on offer.