James Cameron's TED talk
I love these TED talks from "remarkable people", particularly when a writer/director is invited along. James Cameron is the latest invitee, and in the video above he focuses on how imagination can manifest a reality. Cameron was a young science fiction enthusiast fascinated by the ocean, who decided to become a filmmaker to tell stories that spoke to those interests, which in turn allowed him become a real-life underwater explorer. Definitely worth a look.