The idea is that people do not have to excuse themselves from conversation to type a query, and everyone can hear the answer, as if Google were another guest.
You can essentially kiss your memory good-bye and dump it on Google. Soon enough devices are going to pick up the conversation context and produce answers at a moment’s notice.
That doesn’t mean our brains will wither away. But it does mean that our brains will become technology dependent. As soon as the phone gets removed, we panic.
Google is our second brain, replacing the need to store knowledge. It’s the whiz kid on jeopardy but it’s in your pocket and accessible at all times. Knowing can be addicting.