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.

Digiphrenia - how technology lets us be in more than one place - and self - at the same time. Drone pilots suffer more burnout than real-world pilots, as they attempt to live in two worlds - home and battlefield - simultaneously. We all become overwhelmed until we learn to distinguish between data flows (like Twitter) that can only be dipped into, and data storage (like books and emails) that can be fully consumed.

If we stop believing in a future, if we stop doing things for something else but start doing them for now, some fundamental things change. Retirement becomes less about how much money you can squirrel away now and much more a matter of participating and contributing to your own community now so that they want to take care of you. … We’re going to move into a world where your retirement will be more secure if you’ve made lots of friends with young people rather than collected lots of dollars.

The 'looking forward' so prevalent in the late 1990s was bound to end once the new millennium began. Like some others of that era, I predicted a new focus on the moment, on real experience, and on what things are actually worth right now. Then 9/11 magnified this sensibility, forcing America as a nation to contend with its own impermanence.

A society that's addicted to narratives with beginnings, middles, and endings will eventually yearn to end. We just want it to end.

The iPad - contrary to the way most people thought about it - is not a tablet computer running the Apple operating system. It's more like a very big iPhone, running the iPhone operating system.

Facebook's successor will no doubt provide an easy "migration utility" through which you can bring all your so-called friends with you, if you even want to.