We expect more from technology and less from each other. We create technology to provide the illusion of companionship without the demands of friendship.

If you're happy with where the Internet, Facebook, and Twitter have taken you, I'm not the Grinch. Someone called me Sherry Turkle's "evil Luddite twin." I'm not that. I enjoy the bounties of this technology. But if you fear that your connected life is running away with you, read the book, reflect, talk to your family and friends. I think we deserve better than some of the places that we've gotten with this technology.

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.

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

The computer is a mind machine. It doesn't have its own psychology, but in a way it presents itself as though it does.

Pinball games were constrained by physical limitations, ultimately by the physical laws that govern the motion of a small metal ball. The video world knows no such bounds. Objects fly, spin, accelerate, change shape and color, disappear and reappear. Their behavior, like the behavior of anything created by a computer program, is limited only by the programmer's imagination. The objects in a video game are representations of objects. And a representation of a ball, unlike a real one, never need obey the laws of gravity unless its programmer wants it to.

These days, insecure in our relationships and anxious about intimacy, we look to technology for ways to be in relationships and protect ourselves from them at the same time.