Elon Musk's gestures at Trump's inauguration rally have sparked controversy, with some likening them to a Nazi salute. While historians argue that Musk's actions were not intentionally fascist, they highlight the potential dangers to democracy posed by such gestures. The salute, historically associated with fascism, remains illegal in several European countries and has been adopted by neo-fascist groups. Reactions to Musk's actions vary, with some defending him and others condemning the implications of his gestures.