First, yes I accept the conclusion as it is reported. The Pew Foundation has a solid record of well run, statistically sound studies. Second, and more to the point, it is a good idea to realize that every significant technological development in western history has been met by a social push-back--surprisingly almost always from intellectuals. Aristotle claimed that writing would be the ruination of scholarship and erudition, because it would erode the 5th canon--Memory. When the printing press made the Christian Bible readily available to masses of people in languages they could actually read, the Catholic Church declared that unfiltered personal interpretations of the scriptures was sinful. When William Tyndale published a non-Latin version he was hunted through Europe and killed. In the 9th century, illustrations ruined text, then photographs ruined illustrations. And on and on and on.

The reason for this is that as soon as a new technology emerges, a critical class comes up with a set of criteria for judging its value and in so doing makes itself more "necessary" as the arbiter of taste. The digital world is no different. Computers aren't making people less social. Computers are making people social in different ways. We "meet" people from all over the world, learn to discriminate between genuine identities and frauds (which is significantly safer at a distance), and as the Pew Report confirms, we write more not less and share what we write on a more global scale. So relax, login and interact.