This "I work at Google" thing... doesn't give instant knowledge on all areas. There are many ways this could be covered, as many have said here (Above & Below)

This "I work at Google" thing... doesn't give instant knowledge on all areas. There are many ways this could be covered, as many have said here (Above & Below). Noise gates... other Apps listening for key phrases etc. E.g. A Fitness App could be installed with a noise gate + setup to listen for specific fitness related terms... that triggers a simple pules to say person A is interested in that topic.... Another App does the same for topic B... and the list goes on... That's just off the top of my head. (I don't work at Google)