Jim Holt is an American philosopher, author and essayist. He has contributed to The New York Times, The New York Times Magazine, The New York Review of Books, The New Yorker, The New York Review of Books, The American Scholar, and Slate. His book "Why Does the World Exist" was a NYTimes bestseller for 2013.
He hosted a weekly radio spot on BBC Wales called "Living in America, with Jim Holt" for ten years. He has appeared on William F. Buckley's Firing Line, NBC News with Tom Brokaw, and CNN. In 1997, he was editor of The New Leader, a political magazine. Holt lives in Greenwich Village, NY.