My own study of the networked life has left me thinking about intimacy - about being with people in person, hearing their voices and seeing their faces, trying to know their hearts. And it has left me thinking about solitude - the kind that refreshes and restores. Loneliness is failed solitude.

It all stems from the same thing - which is that when we are face to face - and this is what I think is so ironic about Facebook being called Facebook, because we are not face to face on Facebook ... when we are face to face, we are inhibited by the presence of the other. We are inhibited from aggression by the presence of another face, another person. We're aware that we're with a human being. On the Internet, we are disinhibited from taking into full account that we are in the presence of another human being.

We don't need to reject or disparage technology. We need to put it in its place.

One thing is certain: the riddle of mind, long a topic for philosophers, has taken on new urgency. Under pressure from the computer, the question of mind in relation to machine is becoming a central cultural preoccupation. It is becoming for us what sex was to the Victorians--threat and obsession, taboo and fascination.

There are moments of opportunity for families; moments they need to put technology away. These include: no phones or texting during meals. No phones or texting when parents pick up children at school - a child is looking to make eye contact with a parent!

When you're addicted to heroin, there is only one thing you can do - go off heroin. But we're not going to throw away these phones, we're not going to throw away our technology.

Teenagers would rather text than talk. They feel calls would reveal too much.