I was looking for a paper co-authored by Robert Sapolsky, "Reductionism and Variability in Data: A Meta-Analysis". He refers to this paper in one of his Stanford behavioral biology lectures, which I just listened to again with fresh ears,
Chaos and Reductionism, https://www.youtube.com/watch?v=_njf8jwEGRo. I didn't find the paper online.
For further enlightenment, I watched the next lecture in the series, #22 Emergence and Complexity, https://www.youtube.com/watch?v=o_ZuWbX-CyE
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The lectures and articles are very accessible. The lectures are directed at undergrads, the Discover Magazine and The Sciences articles are directed at lay-persons.