Don't know about that - but we're incredibly sensitive to some minor changes to faces; I saw a clip not too long ago of a face digitally transitioning between

Don't know about that - but we're incredibly sensitive to some minor changes to faces; I saw a clip not too long ago of a face digitally transitioning between male and female, the changes themselves were incredibly subtle, and yet the result was obvious and undeniable. There's also the uncanny valley, faces that are almost human yet very slightly off, and somehow come across as incredibly creepy.