It's great to let students use something like "Big History", but the take away for me is that Bill Gates was engaged by it and therefore wants others to use it, instead of finding their own "Big History". Even if that means writing about Vaporwave and using Tumblr & youtube documentaries, student engaging critically with any content that is meaningful to them will help them to become better thinkers and writers. Or maybe I just wish I had dropped out of high school to watch youtube and publish think pieces.