Shteyngart is writing about hedge funders because New York, where he lives, is packed with them, having driven out the writers and artists. They're horrible people but strangely well-meaning in their own way. A sweet idiot of a hedge-funder travels across America by Greyhound to escape his failures, wife and autistic son. He has adventures. Lake Success is funny, wrenching and dead-on. This is the way Americans live now. Terrifying of course.