“Age-class running, as you know, is completely unreliable. It's based on this artificial thing, which is that people who are the same age have the same level of physical maturity. Which just isn't true.”

British-Canadian journalist, author, and public speaker

Malcolm Gladwell is a British-Canadian journalist, author, and public speaker. He has been a staff writer for The New Yorker since 1996, and he is known for books that bring ideas from social science, business, and culture to a wide general audience. He has published eight books. He also hosts the podcast Revisionist History and co-founded Pushkin Industries, a podcast company. His work often looks at why people and institutions think and behave as they do.