'What lies ahead is the past.' A Neanderthal walks us through the passage of time to predict the future using the lessons of the past Performed by Robert Beyer, written by Marius von Mayenburg, directed by Amy Hodge, produced by Jess Gormley, filmed and edited by Noah Payne-Frank, composed by Tim Goalen, producer for Headlong Alecia Marshall, assistant producer Tilly Taylor, executive producers for the Guardian: J…