I think you might be slightly misunderstanding what is being suggested . You are talking about when you actively trigger Google again and simply ask a follow up question fun fact you don ' t have to ask the same device that you used to ask the previous question you can ask any device you are signed in to . What the poster is suggesting is that after the device has fulfilled a query , instead of going into standby mode and listening for OK Google which is done on the device itself , the device should continue to send everything it hears to Google and let Google determine if you are asking another question without triggering it with the wake phrase or it ' s hearing background noise or a conversation that you are having with someone else and thus it should stop listening .