Legal complexity, contention, ambiguity and speculation underlie the relationship between collections from the past, and their latent potential for future knowledge production. For the younger generation, for example, there can be no in-depth decolonial art history without access to ethnographic collections, and the elaboration of a legal language with which to re-distribute rights. In her lecture given at Artium Museoa on May 2022, Clémentine Deliss spoke about ways of designing museums for transversal, performative, decolonial, and democratic models of art practice, research, and education. Case studies included her work with the Weltkulturen Museum in Frankfurt, and subsequent developments of the Metabolic Museum-University in Kyiv, Karlsruhe, Ljubljana, and more recently at KW Institute for Contemporary Art Berlin.