I know.Very interesting. If, without the rest of the article, I heard that someone was developing a technique "which measures the dirt accumulated on medieval manuscripts," I would be thinking and academics get paid for this sort of thing? But it actually makes sense.
They had very powerful cultural conditioning however.People in the Middle Ages weren't really all that different from us, intellectually, and identical biologically - of course they'd behave the same way.
Just by touching the pages you'd be leaving minute amounts of dirt behind, which, with continued use, would accumulate.And I'm just thinking if you paid as much for your book as for your house, would you get it the pages dirty and fall asleep with it?
If medieval reading habits are shown to be similar to the modern day, that is in itself interesting, even if it confirms a suspicion.So people who could read behaved the same way as modern readers.
Sorry, but this is a bit like swimming the Channel to tell us that water is wet.
People in the Middle Ages weren't really all that different from us, intellectually, and identical biologically - of course they'd behave the same way.