Esther Duflo, the 2019 Nobel Prize winner in economics, discusses her groundbreaking work at the Abdul Latif Jameel Poverty Action Lab (J-PAL), which has transformed the approach to development economics. Unlike traditional methods, Duflo's team focuses on specific, precise questions, leading to more useful and actionable answers. For example, their education experiments revealed that reducing class size did not significantly impact learning outcomes, challenging conventional beliefs. Duflo's innovative approach offers valuable insights into poverty alleviation and redefines the way we address economic development.