Really, sex is an illusion? That’s not what she said!
Maybe they meant something entirely differently when the title was written.

What you’re looking at isn’t an optical illusion, but is a play on the basic expected traits of men and women’s faces. The flusher lips of the left pic coincide with our expectations for women’s faces, as does the fairer skin. And it’s not just the illusion of lipstick; even without lipstick, we expect women’s lips to be more red than men’s. The difference in skin tone also brings to mind a recent a study suggesting that, on the whole, men’s faces are more red complected, while women’s are more green. Thus, even in the B&W photo, we infer that the darker complected face has the deeper reddish tone of masculinity; the lighter, the paler, greenish tone of femininity.
Via The Grand Narrative.






