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Re:Researchers suggest that R.E.M. sleep serves to warm the ... by ajmarcic on Sunday June 10, 2018 @08:55PM (#17281003)
You skipped the following sentence in your quote: "Other researchers consider it a protoscience, or trans-science system instead."

Early thought systems evolved from hundreds of generations of folk wisdom. There are significant enough gaps in modern scientific understanding that to discount these systems is foolish.

Note that the current discussion is set in such a gap.

Re:Researchers suggest that R.E.M. sleep serves to warm the ... by mark_edward on Sunday June 10, 2018 @09:38PM (#17281142)
From the god of the gaps to the pseudoscience of the gaps. The same 5 old tricks to justify superstition and folk belief.