Boomerang: Travels in the New Third World

by Michael Lewis

“Human beings are wandering around with brains that are fabulously limited,” he says cheerfully. “We’ve got the core of the average lizard.” Wrapped around this reptilian core, he explains, is a mammalian layer (associated with maternal concern and social interaction), and around that is wrapped a third layer, which enables feats of memory and the capacity for abstract thought. “The only problem,” he says, “is our passions are still driven by the lizard core.

As idiotic as optimism can sometimes seem, it has a weird habit of paying off.