What's the Point of John's Gospel?

As an historian, I'm pretty much always interested in ancient writing. Give me a document written a few thousand years ago, and I'll be entertained for hours. My guest today is similarly minded, except his passion for the Gospel of John has sustained him for the last decade. Today, Dr. Hugo Mendez joins me to talk about why he thinks the Gospel of John was written, and the ways the author tried to achieve his goal.