What if only a machine could be the real Zarathusta?

(English) Nietzsche in his most famous book, "Thus spoke Zarathusta", sets the prophet the task of announcing to man that he can "overcome himself". God is now dead and therefore, according to the philosopher, the human being is finally free of his chains and can finally fulfill himself. But what if we are not able to do this? What if only a machine we built could take us beyond ourselves? The film "I, Robot" might tell us something.