I had a day off, and I spent it watching the live testimony. Yes, I had nothing better to do and need to get a life
It's fascinating (and infuriating) that Facebook apparently collects information even on non-Facebook users. One of the congressmen asked how it is possible for users to "consent" or "opt out" or exercise "control" over their information when they don't even have a Facebook account and never agreed to the terms of service. Zuckerberg did not have a good response to that, only justifying it in terms of what FB needs (he claims it's for security to prevent fake accounts). Apparently they have 29,000 data points on the average user, so they can predict with reasonable degree of accuracy what the average FB user likes, believes in, or will behave. It's extremely creepy.
I think people aren't as outraged as they would otherwise be because they don't understand how detailed this tracking can be. I didn't know, for example, that FB is able to track all your activity as long as there's a "Like" button on that page. Now, lots and lots of highly intimate websites have "Like" buttons on their pages. Some examples that were given included: FB knows if you're clicking on particular prescription medication and can therefore guess if you have a particular condition; [OT comment removed by moderator prudent]
another example I read - FB can even predict if someone is a danger to themselves based on their web activity and has taken it upon themselves to alert authorities in these cases.
I mean, WOW, just WOW!
Yes, I deleted my FB account! #DeleteFacebook