I'm going to show you two movies, one from each of two conditions of an experiment, and because you're going to see just two movies, you're going to see just two babies, and any two babies differ from each other in innumerable ways.
Vou amosar dous vídeos, un por cada suposto dun experimento, e como só se verán dous vídeos, só se verán dous bebés, e un par calquera de bebés difire de calquera outro de innumerábeis formas.