““It’s not easy being a mammal with a big cortex. We have enough neurons to imagine things that don’t exist instead of just focusing on what is. This allows us to improve things, but it also leave us feeling that something is wrong with the world as it is. A vicious cycle often results. The more you make yourself happy by imagining a “better world,” the less invested you are in the world as it is. This can lead to bad decisions that trigger unhappy chemicals, motivating you to live in your imagined world even more. Reality is a disappointment compared to the ideal world that a cortex can imagine.””