>There is no conceptual difference between Alexa and Siri, Google Now or Cortana. Yes there is. Alexa is always listening, even when I'm not saying anything it

>There is no conceptual difference between Alexa and Siri, Google Now or Cortana. Yes there is. Alexa is always listening, even when I'm not saying anything it needs to hear. And by "listening," I mean "sending audio data back to Amazon Cloud for processing. No, thank you.