“We, all of us, men and women, encode masculinity and femininity in implicit metaphorical schemas that divide the world in half. Science and mathematics are hard, rational, real, serious, and masculine. Literature and art are soft, emotional, unreal, frivolous, and feminine.” Siri Hustvedt, who is both a novelist and a science writer, looks at that division, the ways Knausgaard’s My Struggle crosses it, and how that affects the way he is seen as a writer.