According to a study published in the American Sociological Review, from 1985 to 2004 the mean number of “close confidants” (people with whom one can discuss important matters) Americans had dropped by nearly a third, from 2.94 to 2.08 people. Similarly, the number of those who said they could not discuss important matters with anyone more than doubled, to nearly 25 percent. “The general image,” the researchers wrote, “is one of an already densely connected, close, homogeneous set of ties slowly closing in on itself.”