This work presents a minimal ontological framework in which occurrence requires irreversible ontological loss. The paper is conceptual and foundational in nature. It does not propose a physical model or make quantitative predictions. Its aim is to clarify necessary conditions for events, causality, and history to exist at all, and to articulate a clear criterion distinguishing loss-based ontologies from fully unitary or reversible ones, including many-worlds frameworks. The document is intentionally concise and is intended to be read carefully as a philosophical-foundational contribution.
FLORIN NEAGU (Sun,) studied this question.