Fake news, Post-Truth are now entries into the ordinary language of contemporary politics to denote - with anxiety and concern - the definitive rupture of the relationship between truth and politics. A relationship that has never been idyllic and that cannot be, constitutively, idyllic, but which now seems to have reached a point of no return. Glossing the reflections of Hannah Arendt in Truth and Politics and pointing out two areas of “political licence” - that is, two areas where, inevitably, politics cannot be judged on parameters of truth - this contribution aims to treat the weakness of shared truths not as a cause of the crisis of democracies, but as a symptom of a more radical problem, an extreme subjectivism that leads to loneliness and intolerance towards any relationship based on trust.