I don't really understand this comment. You don't think it's surprising or interesting that it could predict with 70% accuracy the political orientation of two

I don't really understand this comment. You don't think it's surprising or interesting that it could predict with 70% accuracy the political orientation of two different older white males? Or two younger non-white females? I found this to be a surprising result. What the mechanism? Is it the haircut? The facial expression? The quality of the photo? Maybe. Do those count as "biases that they don't take into account?" Could be. Would it be interesting to learn what those "biases" are? Yes!