The goal of forecasting is not to predict the future but to tell you what you need to know to take meaningful action in the present

We do need to rethink privacy. I think we need to fall back on (former Supreme Court Justice) Felix Frankfurter's definition of privacy which is, "Privacy is the right to be left alone."

The value of a social network is defined not only by who's on it, but by who's excluded.

The arrival of television established a mass-media order that dominated the last 50 years. This is a personal media revolution. The distinction between the old order and the new order is very important. Television delivered the world to our living room. In the old media, all we could do was press our noses against the glass and watch.

Sometimes I think we're on this world for three reasons: to be useful, to tell each other stories and to collect stuff. It's the only explanation for eBay. We love to collect stuff, and at least if we're collecting stuff in cyberspace we're not deforesting the Sierra Nevada.

More information and more communications foster world peace and understanding. But connecting extremist nut cases together on the Web - whatever flavor extremism they are - is a really bad thing. More information may not be a good thing, either.

We tend to use a new technology to do an old task more efficiently. We pave the cow paths.