A veil

Seven out of ten.
This was the number of people sitting in front of me in a train who were looking into a small screen of their cellphone. Three days ago, without having nothing to do in a train, I observed those people. A young business man was smirking perhaps reading an email perhaps from his girlfriend, from time to time picking his nose. A middle-aged lady was pressing the keys oblivious to the world. A mother was half writing an email and half scolding her son who constantly annoyed her by asking her to let him press the keys of her cellphone. A school boy sitting beside me was frantically shooting something falling from the sky on the screen by pressing the buttons with professional skill and incredible speed.
The other day when I went to a restaurant, there was a group of 5 high-school girls sitting at a table. They seemed to have finished their lunch. What was special about them was...all of them were looking into their cellphones without any conversation at all. For ten minutes or so until one of them said "it is about time", they did not utter even a word. What on earth is it? They were lost in communicating with someone in a remote place in the form of letters and characters while they have many friends to talk to sitting whispering-distance away.
I don't know any medium that changed our life styles more than cellphones and emails. Like other new things it can be good and bad. But I feel that it is another veil, very thick one, that covers the reality.