During the course of 2009 there have been hundreds of video clips that have wowed me left and right, but one that sits on the Top 5 list for 2009 is this amazing "The Known Universe" that will make you glue to your chair in amazement. It's just so mind-blowing and provocative of how much we know (And don't know!) that will make you think about things twice ... Yes, one of those really nice and humbling experiences one gets exposed every so often that clearly shows what we are ...