is a lecturer in the media studies department at the University of Siegen. Together with Karin Knorr Cetina, he heads the project "Agentic Media: Formations of Semi-Autonomy" in the DFG Collaborative Research Centre 1187 "Media of Cooperation". He has a background in media studies, philosophy, and computer science and received his doctorate at Justus-Liebig-University Gießen with a thesis on the media theory of digital databases. His research interests include the history and theory of digital media, especially the logi(sti)cs of database technologies, big data, and algorithmic media as well as digital methods. Daniela van Geenen is a Ph.D. candidate at the DFG Collaborative Research Center 1187 "Media of Cooperation" at the University of Siegen, after receiving her MA from Utrecht University. Her research lies at the interface of media studies and science and technology studies (STS), with particular focus on (critical) data studies, software, device, and infrastructure studies. In her Ph.D. project she investigates the sociomaterial organization, (data) practices, and values in/of urban sensing, paying specific attention to cases of environmental sensing in relation to mobility monitoring and planning. She is also a lecturer in Data Journalism and Visualization at the