Dr. Yonatan Stelzer is a Principal Investigator at the Weizmann Institute of Science. He discusses how his lab combines developmental biology, epigenetics, and single-cell technologies to understand how cells acquire distinct identities during embryonic development. He also explores building quantitative models that track development across space and time, how extracellular signals and epigenetic mechanisms shape cell fate, and the opportunities and limitations of using AI to uncover the underlying logic of biology.