“This video shows a new technology that allows you to dial phone numbers by simply touching a projected screen on your hand, manipulate digital images with hand movements and even draw a watch on your own hand to tell what time it is.”

This demo — from Pattie Maes’ lab at MIT, spearheaded by Pranav Mistry — was the buzz of TED. It’s a wearable device with a projector that paves the way for profound interaction with our environment. Imagine “Minority Report” and then some.