A skilled man differed from other living beings in his brain, namely in his structure. The occipital lobe of the brain was noticeably smaller than that of the monkeys. But the forehead, temporal and parietal lobes were larger. Bulges formed inside the skull, indicating the presence of speech centers. True, due to the peculiarities of the larynx, he could not yet speak. But nature prepared him for this skill. And one of the important steps here was the appearance of associative fields. These very fields allow us to understand the meaning of words, to comprehend the information that the speaker wants to convey to us. Homohabilis conveyed information through various sounds. But he developed a willingness to understand words.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.