The article discusses Tactile Internet (TI) and its role in enabling haptic human-machine interactions. It introduces the concept of human digital twin (HDT) and proposes edge computing empowered TI (ECoTI) for HDT. It presents the system architecture, design considerations, and challenges of ECoTI, along with implementation guidelines. An experimental study demonstrates ECoTI’s effectiveness in physical therapy. The article concludes by discussing open issues and future research directions.