This is a must watch to better understand the tech world that is coming. You will have a better understanding why Trump has been pushing back so hard on China wrt to 5G, Huawei, etc. and not allowing China to build the US 5G network. You will understand what China is trying to accomplish. As the General states, you cannot opt out of a 5G world. 4G network = 10,000 devices per sq mi 5G network = 3,000,000 devices per sq mi