The document discusses the internet of things (IoT). It defines IoT as a network of devices, electronics, and sensors that can connect and share data without human intervention. Each connected thing has an IP address and can sense and share information. The document outlines how IoT will revolutionize transportation, healthcare, manufacturing, environmental protection, infrastructure, energy usage, and smart cities by enabling various devices and sensors to autonomously communicate and share data. It predicts that within two years, the number of connected devices and sensors will greatly increase across many industries.