You Dreamed of Empires sets the scene for a violent historical encounter: the war between the Spanish and Aztec empires. But in a fictionalization of Hernán Cortés' arrival in the city of Tenochtitlan in 1519, author Álvaro Enrigue challenges ideas about colonialism, revolution and influential rulers. In today's episode, he speaks with NPR's Scott Simon about finding humor and humanity in the men he writes about — sometimes laughing about, but not with, the powerful ones.