content: https://www.wsj.com/articles/facebook-really-is-spying-on-you-just-not-through-your-phones-mic-1520448644 Add 10 years or so to this tech to guesstimate their capabilities. Your personal spy device only makes it easier. Combine that with facial recognition + aerial city surveillance/tracking and your life, both internal and external, is practically an open book.  Even if you're not a user of those socialist media platforms, they probably have a file on you, based just on your existence and interaction with the world.