"The information they keep about people was given to them voluntarily — either by users themselves, or by their friends and acquaintances. And what they now know, they are free to share — sell, give away, publicize, it is up to them."
I disagree. Most of the people who provided the data to Facebook had no idea that it could be used in the way it is. Most Facebook users still don't know what's being done with their data, and that's exactly the way Facebook wants it. To say that these people willingly handed it over is like saying people scammed during the savings and loan scandals should have known better. When is the last time you read three or four pages of fine print legalese before signing up to use a website, or when applying for a mortgage? Even if you're determined to read it, you won't fully understand it unless you're a lawyer.
And when they scrape copies of every text message you sent with your cell phone, back when they could do it without asking; when they collected the names and phone numbers of all of your contacts; when they kept logs of who and when you call; when they keep logs of where you've been day after day out using location data from your phone--when they store all of this information, combined it with data from your Facebook profile, then put AI engines to work on it--I would say that those actions were all illegal invasions of privacy. Zuckerberg and friends should be tried for illegal eavesdropping.
And when that's done, they should start on Google and Microsoft . . .
Some people worry about what will happen when computers get smarter than people. They don't realize that it's already happened. AI can process huge volumes of data that humans could never hope to handle. The insights/information that can be derived from the kind of data that Facebook and Google keep boggles the mind. But don't believe me. Google it for yourself and you'll see. Maybe start with 'psycho-analytics'.