More voices means less trust in any given voice.

There's the part that I just want what I want, and I don't want to be bothered by anything else, and sort of the short-term more compulsive self. And then that's the longer-term, aspirational self that wants to be informed about the world and wants to be a good citizen. The best media basically helps us strike a balance between those two things.

In a personalized world, important but complex or unpleasant issues are less likely to come to our attention at all.

If you only have one shot at writing a headline, there's a lot of pressure.

Whether it's Facebook or Google or the other companies, that basic principle that users should be able to see and control information about them that they themselves have revealed to the companies is not baked into how the companies work. But it's bigger than privacy. Privacy is about what you're willing to reveal about yourself.

I think it's easier than ever to hear only what you want to hear. That doesn't make a good citizen.

Personalization is based on a bargain. In exchange for the service of filtering, you hand large companies an enormous amount of data about your daily life--much of whic you might not trust your friends with.