In Being a Human, Charles Foster attempts to inhabit three past eras to find out first-hand how humans came to be who they are. He lives like an Upper Palaeolithic hunter–gatherer, an early farmer in the Neolithic, and he briefly visits the Enlightenment—or so we are promised. When I received this book, I was, admittedly, slightly unsure. Any attempt to live like past humans, especially hunter–gatherers, is fraught with difficulties as so many things have irrevocably changed: the flora and fauna, the landscape, the knowledge most of us have gained (you cannot really unsee germ theory) but also lost (who here can kill and prepare an animal or make a fire without modern tools?), or the fact that we lived in large communal groups. When the flap text also mentions shamanic journeys I was fearing the worst: am I about to witness yet another affluent man’s mid-life crisis?