Spiegel talks with Steve Bannon.

We sit down at the dining room table and he picks up a book, a biography of the philosopher Martin Heidegger. "That's my guy," Bannon says. Heidegger, he says, had some good ideas on the subject of being, which fascinates him. This is what conversations with him are like: He jumps from the depths of politics to the heights of philosophy, from the swamp to Heidegger in five seconds. What sets us apart from animals or rocks, Bannon asks? What does it mean to be human? How far should digital progress go?