Simple-Logic Essay Competition: Finger-length paper

Here’s this weeks’s Simple-Logic Essay Competition.

In clear simple sentences, describe the chain of logic for this academic paper:

Correction for van Honk et al., ‘Testosterone administration impairs cognitive empathy in women depending on second-to-fourth digit ratio‘” [Proc Natl Acad Sci U S A. 2013 Jun 17]

COMPETITION RULE: Your simple, clear explanation must be , at most, 40,000 words long.

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BONUS (unrelated): Here is a photo of van Honk:

vanHonk