There are several reasons people might find smart devices equipped with an always-on microphone both attractive and unsettling.
Apple's closed system may be its undoing in the smart home market.
Asking whether machines can really understand us is meaningless.
If Facebook already knows how you feel from reading what you post, soon it will know from reading the expressions on your face.
'Intelligent' voice interfaces like Alexa and Siri are much hyped, but they have limitations, not all of which can be solved with better technology.
Amazon's voice-controlled personal assistant device is coming to the UK and bringing smart homes with it.