observe and learn a lot about the world so that's what we're interested doing it and you know brains from the from the neuroscience literature seemed to be exquisitely tuned for these kinds of temporal statistics so this is one of my favorite studies it's like a physics where basically they took faces and then they rotated them and then had subjects to passively watch these but as a little trick sometimes they would morph the face as it moved and people generally didn't notice this but if you ask the same different later ones that had