A world where everything talks -- we know it is big, but we don't know how big it will be. This is the moment of 5G, super-fast communication. 5G will make the world tighter and could change communication, manufacturing, healthcare and even energy. But 5G becoming the nervous system of a brave new world is exciting and challenging at the same time. CGTN's Zou Yue shares his view on the future of this new technology.