Résumé
Although it reached its peak during the health crisis, the invasive presence of experts is a phenomenon that goes back along way. It has accelerated considerably as a result of the hyper-medicalisation of our societies and the growing complexity of our healthcare system. The figure of the expert, his role and the scope of what he has to say have changed considerably, particularly in the healthcare environment. These metamorphoses are just as perceptible in the healthcare relationship as in public action, which oscillates between 'epistocracy' and 'technocracy'. (c) 2024 Elsevier Masson SAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies.