In this issue: COMMENT "20 Under 40", by The Editors of The New Yorker: Young writers who capture the inventiveness and the vitality of contemporary American fiction. FICTION "The Pilot", by Joshua Ferris. "The Entire Northern Side Was Covered with Fire", by Rivka Galchen. "Dayward", by ZZ Packer. "Here We Aren’t, So Quickly", by Jonathan Safran Foer.