I mean the whole paper is sloppy here. They kind of are writing to a biomedical journal and then say "well, it's NOT biomedical..." as kind of a little brush-off? And then they go through a couple explanations they have heard and dismiss them without really going through the evidence. (I especially liked the sloppiness of self-contradiction, in one section they're like "well there are no Hebrew letters that work for this" which is wrong, you could make decent arguments for both shin and tsadeh -- but then almost immediately after they're like "well this could be an M or W, W
can symbolically be the Hebrew letter Vav...")
And after cursorily dismissing them they just say "therefore, it's an aesthetic meme. This is just what perfect hands look like, sorry."
A hypothesis that was not considered, for example: 'We asked people at school to imagine that they were going to be sitting still for the next three hours on a stool, and to sit on it in a way that was perfectly relaxed. We then prompted them "remember, in old times you'd have had to sit here for three hours, really relax." Finally, we then picked up their left wrist, turned it, and placed it on their chests saying "great, now can you just hold this hand here," and took a photograph. In 30% of these photographs we also see, even without syndactyly, that the two fingers get forced together just by the process of having your wrist twisted by an artist and then the fingers having to conform to the contours of the chest.'
I don't know what that percentage is, but I'd be surprised if it were 0%, right?
