No, not yet — don’t worry! But they’re working on it — and a recent study showed that they can tell at least some things by reading your brain waves. They gave a group of study subjects two different colored patterns to look at, and used a technique called MRI (Magnetic Resonance Imaging) to take a sort of picture of brain activity when the subjects looked at the red and the blue patterns. They discovered that once they had a picture of brain activity for a particular color, they could then use that information to “guess” which color a person was looking at without knowing beforehand. What this shows is that it is possible to get at least some small picture of what someone is thinking, just by studying their brain waves. It’s a long way away from having any kind of machine that can read all of your thoughts, but maybe someday it won’t be unusual at all!