This text explores the concepts of determination and determinism through a critique of the classical understanding of causality. The author argues that the rejection of traditional cause-effect relationships does not necessarily imply a shift toward indeterminism. Every event must possess an origin, which is not caused by preceding factors but is instead realized through contact with surrounding realities. These surroundings provide a fixed set of conditions that either facilitate the further development of the event or relegate it to the status of a mere virtuality. A successful beginning of an event-driven process requires a selection from a plurality of given circumstances. The author notes that while successful developments can be analyzed, failed attempts to initiate an event remain entirely unobservable. Drawing on the work of Teilhard de Chardin, the text defines the origin as a radically new element that is neither caused nor evoked. It represents a spontaneous start that, although independent in its emergence, depends on environmental interaction to evolve into a continuous process.