Josh Schwartz and Stephanie Savage made ‘The O.C.’ and ‘Gossip Girl’--some of the most defining young adult shows of the early 2000’s. They continue to create series about young-person angst, including a ‘Gossip Girl’ reboot for HBO Max. They tell us about their new young adult series on Hulu, ‘Looking for Alaska,’ which they first had dreams of making into a movie 14 years ago.