Recent advances in small, inexpensive sensors, low-power processing, machine learning and mobile-user interfaces have enabled applications that use on-body sensing to infer people’s activities throughout everyday life. The Digital Simplicity project brings this technology into our everyday lives and simplifies our high-level, long-lived activities. Target activities include supporting the elderly’s health and independence, motivating individuals to get fit and reducing a family’s environmental footprint. Explore these applications as well as the underlying sensing, inference and design tools required to bring Digital Simplicity to everyday life. From the Series:CSE Colloquia - 2007