"Something funny happens to people who are lonely. The lonelier they get, the less adept they become at navigating social currents. Loneliness grows around them, like mould or fur, a prophylactic that inhibits contact, no matter how badly contact is desired. Loneliness is accretive, extending and perpetuating itself. Once it becomes impacted, it isn’t easy to dislodge. When I think of its advance, an anchoress’s cell comes to mind, as does the exoskeleton of a gastropod."