John Green, the author of the mega-best-selling “The Fault in Our Stars,” found an audience of millions making YouTube videos with his brother and best friend, Hank. As more people aspire to become influencers, Green warns that internet fame may make it feel as if everyone knows and loves you, “but in fact, no one knows you.” Read more: https://nyti.ms/4oZPE2u | The New York Times