This dialogue began as a result of John Loftus publishing his The 2012 Debunking Christianity Challenge (which is less a challenge and more an invitation to a 12-month intensive indoctrination into unbelief…but I won’t belabor that here).
Some parts of the conversation are more edifying than others, but I thought it was worth the reference.
Update January 22, 2012: John has deleted that post and all 250 or so of its comments so the link now leads nowhere. He said that the conversation had been “derailed” by me and so he re-posted his article sans all the original comments. My response to this action by John is: An Open Letter to John Loftus.