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

It used to be that we imagined that our mobile phones would be for us to talk to each other. Now, our mobile phones are there to talk to us.

Ours has been called a culture of narcissism. The label is apt but can be misleading. It reads colloquially as selfishness and self-absorption. But these images do not capture the anxiety behind our search for mirrors. We are insecure in our understanding of ourselves, and this insecurity breeds a new preoccupation with the question of who we are. We search for ways to see ourselves. The computer is a new mirror, the first psychological machine. Beyond its nature as an analytical engine lies its second nature as an evocative object.

We're lonely, but we're afraid of intimacy.

Human relationships are rich and they're messy and they're demanding. And we clean them up with technology. Texting, email, posting, all of these things let us present the self as we want to be. We get to edit, and that means we get to delete, and that means we get to retouch, the face, the voice, the flesh, the body -- not too little, not too much, just right.

If behind popular fascination with Freudian theory there was a nervous, often guilty preoccupation with the self as sexual, behind increasing interest in computational interpretations of mind is an equally nervous preoccupation with the self as machine.

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