Probably "AI". It's not actual like AI in films , but it is a great program that can analyze human language and extrapolate pretty interesting data from a wide variety of sources, then reformulate that data into a human language that is concise and useful. I am personally excited about the prospect of a personal AI that can run locally or in a truly private cloud services that can learn my speech, my habits, my interests, etc and be ready to provide me with customized data from the Internet or from it's observation of me.
It's a double edge sword though. While a tool like this should be used to discover more truth about the world we live in, there will be many bad actors trying to use it to manipulate and lie to achieve their nefarious goals. AI will also need to be trained to detect when something is fake, and I feel that this will become a never ending arms race.
Nothing is where I expect it in my kitchen.