Rick Carrier starts off with an effective illustration to help people come to see the difference between claims which require ordinary evidence "I own a car" and claims which require far more evidence "I own a nuclear missile" and claims which require the best possible evidence "I own an interstellar spacecraft." He goes on to address miracle stories in general, such as those surrounding St. Genevieve, and the reports of magical events at the Temple of Delphi and the sacred olive tree of Athens. He goes on to make a parallel between the gospels and earlier legends, such as the stories of Romulus and Osiris. He then makes the difficult argument (given the audience) that the early disciples were schizotypal visionaries, prone to subjective religions experiences unbeknownst to those of us who are psychologically healthy and normal. Specifically, he argues that Paul was preaching a gospel based on his own personal religious visions combined with his interpretation of the Hebrew Scriptures. He goes on to argue that Paul hallucinated precisely what he needed in order to quickly resolve his internal emotional conflict, assuming that he was riddled with guilt over his persecution of the early Christian Church.
Instead of rebuttal, this debate goes straight into cross-examination. They each ask difficult questions of the other and work hard to bolster their own case while tearing down their opponent's case. I love this format and wish that more debates would adopt something like it.
Overall, this was a tremendous debate in which both men do a fine job of making honest arguments from the best evidence available.