Morten H. Christiansen (Author) Morten H. Christiansen is the William R. Kenan, Jr. Professor of Psychology at Cornell University, Professor in Cognitive Science of Language at the School of Communication and Culture, Aarhus University, Denmark, and Senior Scientist at the Haskins Labs. He was awarded the Cognitive Psychology Section Award from the British Psychological Society in 2013 and a Charles A. Ryskamp Research Fellowship from the American Council of Learned Societies in 2006. He was elected Fellow of the Association for Psychological Science in 2009, made Fellow of the Psychonomic Society in 2013, elected Fellow of the Cognitive Science Society in 2017 and elected as a foreign member of the Royal Danish Academy of Sciences and Letters in 2021 and a foreign member of the Royal Norwegian Academy of Sciences and Letters in 2022. He lives with his family in New York.Nick Chater (Author) Nick Chater is Professor of Behavioural Science at Warwick Business School. He has won four national awards for psychological research, and has served as Associate Editor for the journals Cognitive Science, Psychological Review, and Psychological Science. He was elected Fellow of the Cognitive Science Society in 2010, Fellow of the British Academy in 2012, and Fellow of the Association for Psychological Science in 2014. Nick advises the UK Government, and co-founded Decision Technology, a consultancy applying psychology to business. Nick was resident scientist and co-creator of Radio 4's, The Human Zoo. He is recipient of the 2023 Rumelhart Prize from the Cognitive Science Society. He lives in Oxford