Different people experience and assimilate reality at different paces. This is one step in the understanding of the illusory allure of “time”.
An extreme example of this is someone that enters a coma in their youth and reawakens when they are 30. They have had much fewer experiences than the average 30 year old, let alone the opportunity to reflect and adapt to those experiences.
Rates of assimilation are based on reflection of self and environment. As our rate of reflection decreases (negatively correlated with our media consumption), our experiences become more meaningless and our opportunities for refining our thought patterns (gaining wisdom) are lost. We perpetually reset into the last “solid” mental framework we had– typically the early adolescent, where development of self is too frequently hijacked by media obsession.
Growing in your strength and fiber as a person does not stop at any point. Trees do not halt their growth. They continually reinforce their trunks and roots, all while reaching for the stars.