The disciplines of user interface, industrial design and human­machine interaction were born more than 20 years ago, in a world of desktop computers and heavy machinery. Yet, our notion and understanding of what it means to interact with technology, particularly the internet, are transforming radically. Our interactions are shifting from laptop to mobile and increasingly across other devices and connected form factors. As we add sensors and connectivity to our bodies, appliances, homes, cars, buildings, machines and just about everything else, interaction with the internet grows evermore indistinguishable from interaction with our physical world.