This doesn’t mean that we should stop socializing on the web. But it does suggest that we reconsider the purpose of our online networks. For too long, we’ve imagined technology as a potential substitute for our analog life, as if the phone or Google+ might let us avoid the hassle of getting together in person.
But that won’t happen anytime soon: There is simply too much value in face-to-face contact, in all the body language and implicit information that doesn’t translate to the Internet. (As Mr. Glaeser notes, “Millions of years of evolution have made us into machines for learning from the people next to us.”) Perhaps that’s why Google+ traffic is already declining and the number of American Facebook users has contracted in recent months.
These limitations suggest that the winner of the social network wars won’t be the network that feels the most realistic. Instead of being a substitute for old-fashioned socializing, this network will focus on becoming a better supplement, amplifying the advantages of talking in person.
For years now, we’ve been searching for a technological cure for the inefficiencies of offline interaction. It would be so convenient, after all, if we didn’t have to travel to conferences or commute to the office or meet up with friends. But those inefficiencies are necessary. We can’t fix them because they aren’t broken.
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