Your microphone is being used, so when you say the name of a restaurant, it is recorded and that's why you get advertising for it.
Smartphones are a significant step towards the mechanisation of humans. We are beginning to supplant our brains into our phones. Why remember knowledge when we have Google in our pocket? Why learn directions when he have a map of the entire planet in our pocket? Why learn a language when we can translate it in our pocket? We are using our brains less, which means we will evolve to be less intelligent. The next step is the implanting of electronic devices into humans. This already happens. People have their public transport fob cards and all manner of things implanted into their skin.
Within a century, I'm sure that we will be a world of cyborgs.
'Within a century"... That's too far. I'd say half that time. Technology is evolving so fast now. Soon we will have fully functional Artificial Intelligence, tech that can create tech. Way sooner than a hundred years my friend.
Of course. What I mean is that within 100 years, fully organic humans probably won't exist.