To buy an Apple product is to bet on the longevity of the closed system to which we've committed ourselves. And that system is embodied - through marketing as much as talent - by Steve Jobs.

We Facebook users have been building a treasure lode of big data that government and corporate researchers have been mining to predict and influence what we buy and for whom we vote. We have been handing over to them vast quantities of information about ourselves and our friends, loved ones and acquaintances.

Removed from 'Gmail' doesn't necessarily mean removed from all Google servers. In fact, your old emails are the data set from which Google models our behaviors - the real product it is offering its advertisers.

I am much less concerned with whatever it is technology may be doing to people that what people are choosing to do to one another through technology. Facebook's reduction of people to predictively modeled profiles and investment banking's convolution of the marketplace into an algorithmic battleground were not the choices of machines.

New content online no longer requires new stories or information, just new ways of linking things to other things. Or as the social networks might put it to you, 'Jane is now friends with Tom.' The connection has been made; the picture is getting more complete.

Grunge was so self-consciously lowbrow and nonaspirational that it seemed, at first, impervious to the hype and glamour normally applied swiftly to any emerging trend. But sure enough, grunge anthems found their way onto the soundtracks of television commercials, and Dodge Neons were hawked by kids in flannel shirts saying, 'Whatever.'

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.