[The digital twin in health: Organizational contributions and epistemological limits in a context of health crisis].

A digital twin is the virtual double of a system. This article shows how, within a hospital, decision-makers can mobilize this technology to improve the quality of care. Specifically, digital twins of services and care processes can be performant in risk management inherent in a health crisis. However, the articulation of virtual twins with simulations in the real world seems the best option for professionals to become rational and pragmatic practitioners, able to apprehend uncertainty and prepared to face the unknown in the troubled context that we know.