If you like technical things, the underlying article at Plos One is: Early evidence of royal purple dyed textile from Timna Valley (Israel).
Naama Sukenik , David Iluz, Zohar Amar, Alexander Varvak, Orit Shamir, Erez Ben-Yosef
Published: January 28, 2021https://doi.org/10.1371/journal.pone.0245897
The Plos One article suggests that the fragments may have come from posh clothing. A couple of posts on clothing in ancient Israel are here and here. (Timna was Edomite, but the sartorial conventions would have been similar, at least to us.)
This discovery is further proof that delicate organic artifacts from as far back as the tenth century BCE can survive to the present in the right climate. The Timna Valley has the right climate. So does Megiddo.
Parchment and papyrus scrolls are delicate organic artifacts. If these cloth fragments can survive with their dye intact, I see no reasons why still-readable scroll fragments could not survive in the same environment. We would have to be lucky for them to survive and for us to find them. But the right conditions exist.
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