According to Osho, intelligence isn’t a function of brain cells with fixed lifespans; it is the quality of awareness. Biological growth may plateau around fourteen, but with aims beyond biology—especially through meditation—intelligence can expand continuously, outpace the body, and even deepen beyond death. The more aware you are, the more intelligent; total awareness equals the intelligence of existence itself.
Your intelligence doesn’t depend on aging cells; by growing your awareness—especially through meditation—it can keep increasing, even in old age.