If you can find the black dot in this picture, you suffer from clinical depression.The part of your brain that produces the chemical needed for happiness is damaged, so the other parts of your brain work harder to solve problems. Most people with clinical depression are actually highly intelligent if you find the black dot, you may want to consult a psychologist promptly. It means you can differentiate a black pixel from the dirt on your computer screen, actually.

 lol, what.