British author and speaker Sir Ken Robinson is known for several accomplishments, from his books to his professorships to his TED talks. But in 2006, he gained recognition for something that no other TED speaker in history has done. It was back then that he delivered a TED talk on the topic of whether schools kill students’ creativity—and today, that video has been viewed over 43 million time, currently holding the title of “most popular TED talk of all time.”