this feels like we need to be able to personalise these devices. The problem with using ok google/alexa/meta is that they trigger all device within hearing range, the more ubiquitous these devices become the bigger the problem.

Smart speakers tend to be home based so they issue was mainly seen with incorrect triggers coming from the TV for example. But if I say meta record a video that could trigger recording on devices all around me. So we need individualised trigger words and voice recognition to be able to use these devices in public.

I was prepared to cynically dismiss whatever he said as damage control but his explanation is fair enough. An obscure bug and... Forgetting that every single pair of glasses in the room will respond to you as well??

As for the actual product, it's a solution for a problem nobody has. It doesn't matter how great or terrible the implementation is, i think nobody cares.