Episode 28: The Evolution of Imperfection with Dr Laurence Hurst

In this episode of MEF2Cast, we sit down with Dr. Laurence Hurst, Professor of Evolutionary Genetics at the University of Bath, to explore how imperfection drives evolution. Dr. Hurst breaks down the fundamentals of Darwinian natural selection, the surprising role of mutations, and what these forces reveal about the human genome. He explains why evolution is not a process of perfect design—but one shaped by inefficiency, chance, and constraint.The conversation sheds light on how high mutation rates in humans contribute to rare genetic diseases, and how medicine serves as a powerful counterbalance to natural selection by allowing individuals with genetic differences to thrive. Dr. Hurst also discusses the importance of viewing neurodiversity through a compassionate, scientific lens—reminding us that variation is not failure, but a natural outcome of our evolutionary story.Subjects covered include:The core principles of Darwinian natural selectionWhy evolution is inherently imperfectHow mutation and population size shape genetic diversityThe concept of mutation–selection equilibriumMedicine as a form of “anti-selection” in modern societyThe role of transposable elements in genome inefficiencyUnderstanding non-functional DNA in the human genomeThe evolutionary perspective on neurodiversity and compassion🌐 Visit our website: mef2cast.com🛒 Check out our merch store: mef2cast.printify.me