Files on iTunes - and thus iPods - are incompatible with everything else. Applications on iPhones may only be sold and uploaded through the iPhone store - giving Apple control over everything people put on to the devices they thought they owned.

In the industrial age and in analog clocks, a minute is some portion of an hour which is some portion of a day. You know, in the digital age, a minute is just a number. It's just 3:23. It's almost this absolute duration that doesn't have a connection to where the sun is or where our day is.

I do remember the moment when, as a child, I realized that the things we call 'TV shows' are really just the stuff that gets put between commercials. Later, I came to see that the kinds of things that get on 'free' TV are shows that help sell products.

Your email inbox is a bit like a Las Vegas roulette machine. You know, you just check it and check it, and every once in a while there's some juicy little tidbit of reward, like the three quarters that pop down on a one-armed bandit. And that keeps you coming back for more.

A currency designed for long-term storage and investment doesn't do so well at encouraging transactions and exchange in the moment.

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.

The cloud is still really just a bunch of servers, owned by someone or something, whose decisions and competence must be trusted. This applies to everything from Google Docs to Gmail: Putting our data out there really means putting it 'out there.'