Johannes F.M. Schick is a Postdoctoral Fellow at the a.r.t.e.s. Graduate School for the Humanities (University of Cologne). He was the head of the DFG-research Project “Action, Operation, Gesture: Technology as Interdisciplinary Anthropology”.Mario Schmidt is a Postdoctoral Fellow at the a.r.t.e.s. Graduate School of the Humanities at the University of Cologne. He has published in distinguished academic journals such as Africa, Journal of Eastern African Studies, Ethnohistory, and Journal of Cultural Economy.Martin Zillinger is Professor of Social and Cultural Anthropology at the University of Cologne. His major field research has been in Morocco on trance, ritual, and new media.