One of the best ways to know you're completely wrong, is to behave as if you're complete right.

Anybody who predicts the death of cities has already met his spouse.

If what you're doing is valuable for people, they will find a way to pay you to keep doing it.

Publishing is not evolving. Publishing is going away. Because the word "publishing" means a cadre of professionals who are taking on the incredible difficulty and complexity and expense of making something public. That's not a job anymore. That's a button. There's a button that says "publish," and when you press it, it's done.

A firm is successful when the costs of directing employee effort are lower than the potential gain from directing.

Indeed, the best practical reason to think that social media can help bring political change is that both dissidents and governments think they can. All over the world, activists believe in the utility of these tools and take steps to use them accordingly. And the governments they contend with think social media tools are powerful, too, and are willing to harass, arrest, exile, or kill users in response.

Think about spam filters; if email didnt come from someone that someone you know knows, thats an important signal, and one we could embed in the environment; we just dont. I just want the world to be filtered through my social graph.