It’s an eye-opener. Celebs want us to think they do their own stunts, and our brains are helping them trick us. A new study says we see faces that we expect to see because of a brain mechanism that helps images look stable and continuous. “Our minds assume continuity,” writes OZY’s Libby Coleman, which convinces us that it’s really Uma Thurman flying through the air, not her stunt double. Sure, movie magic also helps, but we can thank evolution for our inability to sometimes see what’s right before our eyes.