Elon Musk has chosen public confrontation with the French justice system. Targeted by an investigation over X and its artificial intelligence Grok, the American billionaire published insults in French directly aimed at the magistrates in charge of the case. Behind this new provocation lies a much bigger conflict between European authorities and digital platforms accused of algorithmic drifts, dissemination of illicit content, and political interference. Paris is now taking on one of the most powerful men in global tech.