Slowly but surely, we’re moving closer and closer to 5G world. From smart-home security to self-driving cars, all the Internet-connected devices in your life will be able to talk to each other at lightning-fast speeds with reduced delay, Objectively speaking ( 客观的说 ), the fastest 4G download speeds in the U. S. top out at an average of 19.42 Mbps. But by comparison( 对比 ) 5G promises gigabit ( 千兆 ) speeds. “5G is one of those signs, along with artificial intelligence, of this coming data age,” said Steve Koenig, senior director of market research for the Consumer Technology Association. “The self-driving vehicle is a great emblem of this data age, and that is to say, it is a sign of time, because with one single task, driving, you have large amounts of data coming from the vehicle itself, and a variety of sensors (传感器) are collecting a lot of information to model its environment as it moves. It’s pulling in data from other vehicles about road conditions down the lane. It could be weather information, but also connected infrastructure ( 基础设施 ) construction. There’s lots of data behind that task, which is why we need high speed. Augmented reality ( AR ) glasses and virtual headset haven’t yet broken the mainstream, but tech companies are joyfully betting (打赌) that these will finally replace our smart phones. With 5G, that could actually happen. This is notable (值得注意的) because companies such as Apple are reportedly developing AR glasses to assist — or perhaps even replace — smart phones. Ericsson stated at February’s Mobile World Congress how smart glasses could become faster and lighter with a 5G connection, because instead of being weighed down with components, the glasses could rely on hardware for processing power. But don’t get too excited. There’s still a lot of work to be done in the meantime including various trials to make sure the radios play nicely with hardware and infrastructure construction so 5G isn’t concentrated only in big cities.