Americans have record-low trust in the media. They’re reading traditional news less. Platforms, too, have broken up with news organizations, making it harder for them to attract readers to their stories. Many 20th-century media companies are outmoded in a landscape where independent sites, influencers, and podcasters are finding large, passionate audiences, especially among adults under 30. Surveying this landscape recently, my colleague Helen Lewis wrote, unsparingly, “The ‘Mainstream Media’ has already lost.”I feel the same way. We are living through a period of deep distrust in institutions, which many Americans…