Danny Funt has been reporting on the gambling boom for The New Yorker, which has generated startling recent headlines, including the arrest of a former N.B.A. coach and the indictment of two M.L.B. pitchers—not to mention the Polymarket user who won four hundred thousand dollars wagering on the seizure of Nicolás Maduro. The legalization of sports gambling, combined with the accessibility of betting apps, has made gambling so pervasive that children in elementary school are routinely placing bets, Funt tells David Remnick. Funt’s new book is “Everybody Loses: The Tumultuous Rise of American Sports Gambling.”