Steven Pinker: Why humans aren't as irrational as they seem

Steven Pinker doesn’t buy into the disheartening conclusion that we are suffering from a collective failure of rationality. In his new book, Rationality: What it is, why it seems scarce, why it matters, the Harvard University psychologist challenges the orthodoxy that sees Homo sapiens as a species stuck in the past, with an ancient brain fuelled by biases, fallacies and illusions, incapable of understanding the complexities of the modern world.