I've read about this phenomenon before. Ignoring the difference between severe clinical depression and "melancholy", it's not hard to see why dissatisfaction an

I've read about this phenomenon before. Ignoring the difference between severe clinical depression and "melancholy", it's not hard to see why dissatisfaction and intelligence-manifested might be correlated: Happy people don't need to rock the boat. Happy people don't turn their lives upside down striving to build great companies and unearth essential truths. Happy people are... happy already.