It is tough to aim at a moving target. It is tough being a parent to growing children. One moment you might be baby-talking and just like that, you might be using complete sentences, and not much later, you might be discussing politics and the meaning of life with them. As a parent, it is a ton easier to see the intellectual growth in children because it is accompanied with physical growth and major milestones such as walking, talking, first day at school, graduating high school, college and getting married. It is a ton harder to see our own growth because the milestones are not so obvious as adults and often associated with those of our loved ones more so than our own. It is normal to not recognize that we have changed too. The things that made us happy in our 30s might be different that those that make us happy in our 50s. That lack of recognition of our growth, and the causes of that growth from positive and negative experiences, can limit our understanding of how our brain is processing current experiences.