Corey Pein’s “Live Work Work Work Die” examines Silicon Valley’s start-up “culture” — My spouse saw this book, Live Work Work Work Die: A Journey Into the Savage Heart of Silicon Valley, by Corey Pein, in our living room and he said, “Kudos to you, another depressing nonfiction book.” (I read almost exclusively investigative journalism, true crime, and sociology books, and my husband…