There are so many different types of goggles-on experiences these days, it can be tough to know which one you're subjecting yourself to. In virtual reality, everything is make-believe. In augmented reality, there are virtual objects overlaid on top of real objects, but they're just little suspended movies—you can't interact. Once you can interact with those not-really-there objects, that's the realm of mixed reality. In this video, WIRED senior editor Peter Rubin explains the details, and the future implications, of each.