Borboleta Pararge aegeria wiki

Alex Todorov, my colleague at Princeton, has explored the biological roots of the rapid judgments of how safe it is to interact with a stranger. He showed that we are endowed with an ability to evaluate, in a single glance at a stranger’s face, two potentially crucial facts about that person; how dominant (and therefore potentially threatening) he is, and how trust worthy he is,
Thinking, fast and slow - Daniel Kahneman