In this engaging discussion, Susan Dominus, a New York Times writer and author, explores how family dynamics, particularly sibling relationships and birth order, significantly shape individual success. She dispels common myths surrounding parenting's influence on children. Meanwhile, Lawrence Hurst, a professor of evolutionary genetics, reveals fascinating insights about human genetic diseases, emphasizing how evolution's imperfections persist. Together, they delve into the complex interplay of genetics and environment, reshaping our understanding of identity and health.