Neil deGrasse Tyson ponders whether the universe has a purpose:
Although he can be a little smug at times, Tyson is probably one of the most genial skeptics in popular culture. He isn’t as acerbic as Hitchens or as confrontational as Dawkins. And I like his collection of geek-themed ties. The video above is a charming primer on rationalism and I hope we get to see more like this.