The voice of a generation

Gen Z already has its “Girls.” The generation’s dissatisfaction is with its own reflection.

Writer, director, and actress Lena Dunham is photographed at the 2012 SXSW festival at the Paramount Theatre on March 12, 2012, in Austin, Texas. (Photo by Michael Buckner/Getty Images for SXSW)

Hannah Horvath wanted to be the voice of her generation. The main character in HBO’s “Girls” might not have become that — we may find out in the five-episode con…