On Season 4 of Theory and Practice, Anthony Philippakis and Alex Wiltschko explore newly emerging human-like artificial intelligence and robots — and how we can learn as much about ourselves, as humans, as we do about the machines we use. The series has delved into many aspects of AI, from safety guardrails to empathic communication to robotic surgery and how computers can make decisions.In episode 5, we explore how machine learning helped create a map of odor and how that technology will train computers to smell. Anthony Philippakis visits Dr. Alex Wiltschko’s lab at Osmo, where scientists are dedicated to digitizing our sense of smell.