This document discusses the 6th sense technology invented by Pranav Mistry. It allows users to interact with digital interfaces using hand gestures by projecting information onto any surface. The 6th sense device consists of a projector, camera, color markers and is worn around the neck like a pendant. It recognizes gestures like taking photos or checking the time and interacts with the user's smartphone without needing to touch it. While promising, the current version is bulky and expensive. Future iterations may reduce size and increase capabilities to integrate this technology more seamlessly into daily life.