The document discusses the Physical Web, which enables connecting physical objects to the internet using Bluetooth beacons. This allows people to interact with objects like vending machines or bus stops through their phone without an app. Beacons broadcast URLs that phones can detect via apps like Chrome or notifications. The Physical Web is predicted to disrupt retail through mobile payment and location-based services like museums. It could reach mainstream adoption by early 2019, enabling new experiences and innovations at the intersection of physical and digital worlds.