In an age of mistrust, communicating more isn’t enough. Influence comes from building networks

Serbian President Aleksandar Vučić’s loss in recent elections was startling for a number of reasons. First, during his 14-year reign, Vučić had come to rule the country with an iron hand. Second was the scale: The opposition Student List candidates won 52.65% of the vote, while Vučić’s United Serbia party took only 39.2%. But even more important, which you couldn’t see from all the big crowds and headlines, is what my friend the Serbian activist Srdja Popović calls the student’s “analog strat...