Anxiety sucks. It always feels like something is behind you when you're alone, or something is under your bed while you're asleep. Social anxiety is also worse. It always feels like someone is laughing behind you, or talking about you in a bad way. Phobias, like being afraid of heights, affects almost everyone in the world. So, why don't we just get rid of them all? Our brains literally just cause all of these, so why not replace our brains? Sarcasm. That'll never happen, ever.