hughfarey said:
Quite, so we must try to base all our opinions on primary sources whenever we can.
I disagree. High-quality secondary sources are more than adequate 99% of the time. In the case of the shroud in particular, the secondary sources are perfectly adequate, as no one has challanged the C14 results. It's advisable to go to the primary sources, yes, but not at the expense of actually drawing conclusions, nor at the expense of valid data.
The issue isn't the nature of the source, but the quality of the data. If the data are true, the sources is fundamentally irrelevant.
Many dedicated carbon daters would no more have wanted to chop little pieces out of the shroud than many bishops, knowing its importance as an archaeological artefact, regardless of provenance.
No "Maybe" here, Jabba. This is standard practice in archaeology, which is the field this falls under. An archaeologist who wants to destroy an artifact in order to date it is an unemployed archaeologist.
Hugh, there's no such thing as a "dedicated carbon dater". You may as well be talking about a dedicated hammerer, or a dedicated spreadsheeter. It's a tool in our toolbox, one that has its uses and also has known limitations.
Jabba said:
- But, for one thing, I would think that the size of the example in your analogy weakens the analogy -- and, even the emotional reaction to taking numerous samples from a dirty handkerchief might affect our judgment as to the need for numerous samples, and thereby weakens the analogy...
The size is irrelevant; so long as the sample is representative and large enough to test (a few grams), the size simply doesn't matter. No one has ever shown that the shroud samples aren't representative, and extensive analysis went into determining that they are; therefore, it's irrational to say they were not. Thus, size doesn't matter.
You're also showing how little you know again. After a few hundred years the hankerchief would just be cloth. I've got on my desk right now, sitting no more than three feet away from me, a zip-top bag containing a portion of a packrat midden. This is rat poop, twigs, and leaves held together by crystalized urine. It's also 15,000 years old (the guy who did the carbon dating is the one who took me to the midden so I could collect my sample), and is essentially sterile at this point.
NO archaeologist EVER would worry about the cloth being dirty. Period. The notion is nonsensical, and only possible in those who's knowledge of archaeology comes from bad TV and internet echo chambers.