The video link seems to be dead -
http://bigthink.com/articles/peter-thiel-debates-jonathan-zittrain-on-the-future-of-digital-monopolies-today-at-445-pm-on-big-think
I would really like to find this video but internet searches keep coming back empty. Makes me want it even more. Was referenced here on ycombinator a few years back - https://news.ycombinator.com/item?id=566942