Picture yourself doing something you’re perfectly capable of doing. You’ve done it many times before. But one day, you’re asked to do the same thing, but with one slight difference: people will be observing you while you’re doing it. These aren’t just any people though, they’re the people who make it clear that they have low expectations for you and that they think you’re not capable of anything. As a result, you feel extra pressure to perform well and you get nervous. Subconsciously, your muscles tense up or stiffen which ends up in you failing to do what you’ve been previously able to do. The people who’ve underestimated you have a good laugh and feel good about themselves because you’ve met their low expectations for you. You’ve fulfilled the prophecy that they’ve given you.