Well, that is aligned with my point. Historical science can conclude absolutely zero people traveled from Tasmania to the moon between 10,000 to 2,000 years ago, barring miraclesof course.
We can’t do the same regarding immigrants to Tasmania, but that “absolute” what is required to established genealogical isolation. Noting the limits of the evidence here is a fundamental activity of secular science, so I’m not sure why it is being presented as evidence otherwise. I wonder if part of it is that Hardin is over-relying on one of your early responses to the Tasmania question while ignoring my caution about your response: