Some Brain Connections are Not Complete until Your 20s
One's mental maturity, the age at which a person is able to integrate the full power of their thoughts, is reached more than a decade after puberty.
Burning Thoughts
One's mental maturity, the age at which a person is able to integrate the full power of their thoughts, is reached more than a decade after puberty.
Nature experiments more freely in evolution with the male of the species.
Nutritionally poor crops, not allowing excess production to support specialization Local animals were not large enough and trainable, leaving little excess talent available to come up with improvements