Join Emma Stoye at the Hay Festival of Literature & Arts in Hay-on-Wye, Wales. She speaks to New Scientist's Rowan Hooper about his book Superhuman, finds out from Philip Ball why quantum physics is Beyond Weird, and discusses the genesis of a new book with Gabrielle Walker. Plus, an in-depth chat about the very nature of the universe with Peter Atkins, whose textbook Physical Chemistry has graced the shelves of chemistry students since the 1970s.