When I'm playing with circular saws, I'm offline (though often listening to podcasts) and when I sit in the cabin to read or write, it's wonderful to be offline for a few hours at a time.

On Twitter, if you want to quote someone else, you say, RT, re-tweet, that person's name, and then what they said before. And it's a way of essentially saying, I'm not saying this, but my friend said this and I thought this was interesting.

If I use Facebook to stay in touch with my high school friends who are church-going Republicans, I may be getting more ideological diversity than in hanging out with secular progressives on the World Politics sub-reddit.

It's fine to have social media that connects us with old friends, but we need tools that help us discover new people as well.

Re-tweeting is a pretty common practice on Twitter, but on an average day, we see maybe one out of 20 posts is a re-tweet.

The Internet has not become the great leveller that it was once thought it could be.

Curators are great, but they're inherently biased. Curators are always making an editorial decision. Those biases have really big implications.