CES 'Year of Alexa' (2017)
Amazon's Alexa voice assistant turned up in refrigerators, cars, lamps and speakers across the show floor. Amazon itself had no booth, yet its software was the story of CES 2017.
Voice assistants became a required feature for gadget makers almost overnight.
Voice control reached hundreds of millions of homes, but many one-off Alexa gadgets flopped and were quietly dropped.
It shows how a single CES theme can go from novelty to everywhere fast, while most individual products still fail.
