Trying to model these trust relationships in the computer is fraught with hubris and failure, but what we can do is associate information with people, and display the information form people we know, with their pictures (and names) next to it. Then, our brains can apply the subtle modelling of trust relationships that they have evolved to do so well.
Making faces bigger onscreen lets us blend the two modes of computation smoothly, and filter and understand the world better thorugh our nuanced understanding of trust.
— Kevin Marks, Faces call the trust code in our brains
