In his critics towards Wagner, Nietzsche suggests that a new form of power is appearing, as a danger, in Bayreuth's theatrocracy. On the basis of analysis like Benjamin's, Debord's and Agamben's ones, we can look at Bayreuth's theatrocracy as the beginning of a modern, aesthetic representation of power: and during all 20th Century, many forms of political mythologies will appear as marked by this inheritance. As known, Nietzsche will oppose it a "tragic writing", which is inspired, when he is still a young student, to Hölderlin's topic of Empedocles' Death. Across Zarathustra, we can find his adhesion to a "tragic writing" also in his last works, as Ecce homo, and in his Letters of "insanity" too.