The Downside of Social Media
neatorama.com
Social Media Is Ruining Our Real Life Conversations
neatorama.com
To use the example from TFA, if someone tells you that their ex got in contact with them recently, you might ask them how they feel about it, what [s]he's been doing recently, and so on: you'd have a conversation. If you've already seen this online, it's likely that it would never come up at all - and you probably wouldn't ask those questions on your facebook wall, as it's not private.
Facebook is particularly bad for this, because it ostensibly covers almost every aspect of your life: replacing conversations with data points.
We should deeply consider how much time, attention and prominence we give to social media. It's a black hole.