The Optimism Bias

American slang for someone who makes others feel bad by focusing on the depressing aspects of things. According to hannah, many americans are hyper optimistic. The belief that everything's going to be fine is called the optimism as it isn't fixed, but changes as we age. After starting out high in children, the optimism bias hits rock bottom, the lowest possible level, in middle age. This goes against our view of the grumpy old man or woman.