The line raced downward just in time to catch the little dot. It hit, bounced off, and started toward the other side of the screen.

Ping.

As it crossed the center, the other line started to move in order to catch the dot. Once again, there was the contact and bounce.

Pong.

All this repeated quite a few times. Suddenly, the screen went blank. Lines and dot alike had disappeared.

Suddenly, hours later, a familiar glow came back to the screen.

Ping.