The concept of disruption with which we work in DOUbT (a sub-project of the research alliance TUDiSC, an excellence measure of TU Dresden) is related to transformations of social systems, by which we hope to shed more light on social transformations to sustainability. In this think piece, we first clarify the context of our conceptualization (section 1), we present our definition of disruptions (section 2), and we note some upshots for our project (section 3).