When zapping on my tv I saw 3 digital compact cameras being demonstrated to a group of elderly ladies. Out of curiosity I watched and heard a young woman telling them that they all offered a special new feature: the first camera had a built-in program that could digitally remove wrinkles, the second one would only take a picture if the indicated number of persons were visible on the screen, so that someone could join in, and the third would only snap if no one closed his eyes or blinked at the moment of exposure. The first camera was the favorite…