If facial recognition software that can compare your features to a criminal database, or gather data for advertisers, wasn’t futuristic enough for you, consider this: Someday when you’re taking a class from a robot instructor, it might be able to tell how well you understand the material solely based on your facial expressions.
Jacob Whitehill, a computer science PhD student at the University of California, San Diego, has created software that would allow him to control how fast a video played just by moving his face. That was the first step, he says—showing that a computer could pick up on facial movements and, if it was programmed correctly, use those movements as instructions. You can check out video of his “smile detector” here.

