Imagine a conversation between one of the greatest scientific minds, one of the greatest communicators of science and one of the greatest science visionaries chaired by the master of Mastermind. That is Stephen Hawking, Carl Sagan, Arthur C. Clark and Magnus Magnusson, respectively. This isn’t some fantasy scenario or an imaginary ideal dinner guest list, this actually happened. Better still, the recording of this amazing conversation can be found on YouTube. Stumbling onto this was like finding a rare work of art in the attic. I know this is not everyone’s cup of tea but you if you do have an hour to spare over the long weekend, you could do worse. Enjoy!