What better way to spend an hour than watching three of the greatest minds of our time discussing life's big questions? In this 1988 conversation, renowned astrophysicist Stephen Hawking, astronomer Carl Sagan, and legendary sci-fi writer Arthur C. Clarke discuss the origins of life, creativity, black holes, and the possibility of extraterrestrial life. There's also a fantastic visual demo from Clarke where he shows off a number of Mandelbrot sets. It's an often funny, sometimes awe-inspiring, and always illuminating discussion — like science, it's s a magical thing to behold.