Discourse ethics and artificial intelligence. Does artificial intelligence favor public reason?

This article shows that discourse ethics in version of ethica cordis contributes to maintain a critical attitude of discernment towards artificial intelligence technologies. It proposes to distinguish between public opinion and public reason, to highlight the critical sense of public use of reason in the line of Kant, Rawls, Habermas and Cortina. It also aims to address the difficulties in exercising public reason in the digital age: impact of artificial intelligence on communication, hyperconnectivity, datafication, "digital panopticon", and the spiral of silence, that endanger the use of reason and personal intimacy.