https://www.cnet.com/news/alexa-talks-down-to-voice-rivals-at-ifa-2017/ >Thousands of technology manufacturers, journalists and fans pass through Europe's biggest tech trade show this week, and there's one thing they're all talking about -- or rather, talking to: Alexa. >Amazon's Alexa is one of many voice assistant systems vying to be your gateway to a voice-controlled future. Early adopters are already talking to their phones,  smart home and home entertainment kit -- but you have to commit to an ecosystem before you can buy new kit. So as Alexa jockeys with Apple's Siri, Microsoft's Cortana, Google's Voice Assistant and Samsung's Bixby, manufacturers and consumers attending the IFA 2017 trade show in Berlin face the same dilemma: which one to pick?