The composer Peter Tchaikovsky knew what loneliness is.  He raised the shades on the window of his heart as he wrote in a minor key, "None but the lonely heart can feel my anguish..."  There are more people today than ever before who know the anguish of the lonely heart.  In spite of the fact that more people are alive right now than have ever died from the days of Adam and Eve to the present, there are also more lonely people than ever before.  It takes more than masses of people to eliminate loneliness.