This document discusses research into developing mind reading computers. It begins with an introduction to the concept of mind reading and theory of mind. It then explains that existing computers are "mind blind" and unable to understand user's mental states. The document outlines how researchers are working to develop computers that can observe facial expressions with cameras and recognize emotions. It notes the technology involves measuring blood oxygen levels in the brain using functional near-infrared spectroscopy. The document discusses both the advantages of improving human-computer interaction and the ethical issues regarding privacy and prediction of human behavior.