Dan Ullman, MPH, gave an empassioned lecture on homeopathy and its ability to transform a person from a disease state to better health. A renowned lecturer on homeopathy, Ullman presented many of the theories that make its efficacy plausible. While ultimately there is still no answer to the question, “How does it work,” Ullman left little room for doubters of the efficacy and plausibility of homeopathy as it is practiced around the world.