Your level of wisdom depends on a specific skill: Your ability to change your behavior based on objective reality Some people are better at this than others They reflect on their experience and the experiences of those around them And they quickly incorporate that data to make fewer mistakes moving forward They don't arrogantly cling to incorrect beliefs... They enthusiastically rid themselves of anything that prevents them from living a better life Like a quarterback watching game film A mistake is analyzed, mentally corrected, and the solution stored for later reference Some people are better at this than others, while others refuse to change even if reality repeatedly smacks them in the face That's why some 20 years olds are wiser than some 80 year olds. It's not experience alone that counts. It's how you process that experience.