Comment by Reader on esryzc

@Reader Your growing/maturing brain can take such as long as you don't overflood your own brain with useless/detrimential stimuli.

Learning in such quantity is a superpower no adults have, because the mature brain is stable -- hence it takes a loooot more time and efforts to learn new things once you're adult. It's prticularly true when the person never maintained her capability to learn be it as a kid or as an adult.

That what neuroscience call "use it or lose it" : either you use your capacity to learn or you lose the capacity to learn. The more, the better ; the less, the dire.