I think old peoples inward focus is more a result of their physical condition than the amount of time they have been alive. If you could put an 80 year olds mi

I think old peoples inward focus is more a result of their physical condition than the amount of time they have been alive. If you could put an 80 year olds mind in a 20 year old body they would probably approach life with the same optimism of other young people. I think our behavior is more a product of our environment than some internal 'self' that is built over our lifetime. If you altered the environment from "75 years old, achy and slow body, limited future" to "25 years old, infinite future, healthy body" I would be amazed if there was not a humongous shift in behavior as well.