How John Green Turned Celebrity into Obsessive Optimism

"The Fault in Our Stars" is one of the bestselling novels of the century. Why did its author just devote five years of his life to a staggering work of non-fiction about... tuberculosis? Because John Green became a super-fan of fourth-tier English football. He employed FIFA and Belichick-level tactics to build a compassionate community on YouTube. He understood the difference between enough and more than enough. And he never forgot to be awesome.