Yes, it is unfortunate that the claim of finding the cause stands and that the follow-on discussion doesn't make it clear that that conclusion was in error. I would've made that point more forcefully but I was treading carefully, hoping to avoid an explosive denial and hoping to gently solicit a re-examination and thus a realization and admission.
If you read the whole thread carefully, you can see that the conclusion is disproved and also what the real source for the conclusion (likely) was. So I consider this specific problem no better understood.
Here's hoping that this round of investigation can come to a more useful conclusion.
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