Mobile notifications put people in a state of perpetual emergency interruption - similar to what 911 operators and air traffic controllers experienced back in the '70s and '80s.

The competitive advantage professional journalism enjoys over the free is just that: professional journalists, whose paid positions give them the time and resources they need to commit more fully to the task. If we can't do better, so be it.

Since the 1960s, mainstream media has searched out and co-opted the most authentic things it could find in youth culture, whether that was psychedelic culture, anti-war culture, blue jeans culture. Eventually heavy metal culture, rap culture, electronica - they'll look for it and then market it back to kids at the mall.

We've been taught that the renaissance was one of the great golden ages of civilisation. The renaissance was not a golden age, it was the end of a golden age.

While Google has given away pretty much everything it has to offer - from search and maps to email and apps - this has always been part of its greater revenue model: the pennies per placement it gets for seeding the entire Google universe of search and services with ever more targeted advertising.

Like civil-rights protesters who sang rousing hymns as they were carried off to jail, Twitterers are bearing witness to what's happening around them, and calling out into the darkness of cyberspace for confirmation. I'm here. You're here, too. We are present.

Our enthusiasm for digital technology about which we have little understanding and over which we have little control leads us not toward greater agency, but toward less...We have surrendered the unfolding of a new technological age to a small elite who have seized the capability on offer. But while Renaissance kings maintained their monopoly over the printing press by force, today's elite is depending on little more than our own disinterest.