ABSTRACTThe Imperative of Responsibility, by the German philosopher Hans Jonas, is a work that aspires to a re-foundation of ethics based on an analysis of the contemporary world as well as on a prediction about the fate of globalized humanity. Through a discussion of the fundamental concepts of Jonas’ work, the essay shows that the central themes of his research, which are still very relevant today, should be addressed by moving from the ethical level to that of ontology and social (...) ontology in particular. To this end, the paper offers a definition of transgenerational action that aims to replace Jonas’ use of prevision. The transgenerational action is here considered as a particular type of social action: that which enables societies to exist over time. Finally, the essay proposes an essential taxonomy of transgenerational actions, showing how working on this notion might lead to a consciously utopian and positive social model. (shrink)