Past Is Prologue: How memory shapes our decisions, actions and identitiesA fascinating new exploration of memories: how they're formed, why they're flawed, and what their real purpose is, from a world leading scientist in the field "Rather than thinking of memory as a hard drive on our computer, holding a firm record of past events in endless files, we should think of memory as a compass, a behaviour whisperer, serving up a general sense of what we have learned in a way that is most relevant to decisions we are facing