The document discusses the potential of 3D virtual worlds (VWs) for healthcare education. It describes how VWs allow for immersive, interactive learning experiences through role-playing clinical skills. Several universities and medical centers have created virtual hospitals, clinics, and simulations in VWs like Second Life. Research on VWs in education is still emerging but initial studies show benefits like increased student engagement and competency through active learning in VWs. The document argues VWs align with connectivist learning theories and can promote collaboration if designed well, though challenges include the time required to develop content and questions around learning outcomes.