Right. Since I now have a bit of time on my hands, let's take a look at one example of Geisler's oh-so-stellar reasoning. From DOC's OP:
Reason #10
The New Testament Writers Abandoned Their Long Held Sacred Beliefs and Practices, Adopted New Ones, And Did Not Deny Their Testimony Under Persecution Or Threat Of Death
Ladies and gentlemen, here is Geisler's reasoning to support why this is true and all of the Muslim/Heaven's Gate/kamikaze martyrs do not count.
Geisler's book from Ichneumonwasp's link said:
What does martyrdom prove? Does it prove Islam is true too?
Not at all. There are some similarities, but there's one critical difference between the New Testament martyrs and those of today. One similarity shared by all martyrs is sincerity. Whether you're talking about Christians, Muslims, kamikaze pilots, or suicidal cult followers, everyone agrees that martyrs sincerely believe in their cause. But the critical difference is that the New Testament Christian martyrs had more than sincerity - they had evidence that the Resurrection was true. Why? Because the New Testament Christian martyrs were eyewitnesses of the Resurrected Christ. They knew the Resurrection was true and not a lie because they verified it with their own senses.
Let's see. What was that definition of circular reasoning again?