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.

Human relationships are rich and they're messy and they're demanding. And we clean them up with technology. We sacrifice conversation for mere connection.

There's a lot of research that indicates the brain rewards us for multi-tasking by giving us a shot of neurochemicals whenever we start a new task. Our brain rewards us even as our performance in every task degrades. We don't even notice that our performance is bad. We don't care. We feel like masters of the universe because our brain is chemically rewarding us for multi-tasking.

It is painful to watch children trying to show off for parents who are engrossed in their cell phones. Children are nostalgic for the 'good old days' when parents used to read to them without the cell phone by their side or watch football games or Disney movies without having the BlackBerry handy.

The kind of solitude that refreshes and restores is very important, not just for children, not just for adolescents, but for all of us. If you don't teach your children how to be alone they will only be able to be lonely.

We're smitten with technology. And we're afraid, like young lovers, that too much talking might spoil the romance. But it's time to talk.

Someday, someday, but certainly not now, I'd like to learn how to have a conversation.