The denser places get, the lower the amount of energy people use to get around it.

Saying the Tech Bloom is not commercially driven is like saying Mother Teresa had an interest in the poor.

If mass media, social isolation in the suburbs, alienating workplaces and long car commutes create a bunker mentality, the Internet does the opposite.

Urban retrofitting: creating different sorts of spaces and uses out of places that are already there.

I think there's a gigantic generation gap in terms of how people understand the Internet and how much they think technology is an important factor in social change.

There’s more to being an environmentalist than occasionally signing an online petition and mailing your check to the Sierra Club. Really the most effective environmental actions you can take have to do with crafting your home and surroundings, your workplace decisions and your investment habits.

There is no such thing as garbage, just useful stuff in the wrong place.