We evolved to communicate, to speak and to listen, and acquire verbal and auditory skill relatively easily. There is no guaranty that we learn to read and write, but somehow our brains have figured out how to reconfigure themselves into reading and writing brains. But our brains don't simply do this on their own. Fluent reading and writing must be taught, and learned. Our brains have had to figure out (or not) how to do both. Learning, and making a regular practice of, reading, and writing, change our brains, and in turn, literate brains change how we see and think, what we can learn, whether we can also learn to think critically. Or not. Our brains can learn to develop machines that are supposedly artificially intelligent. With the caveat that we don't even know yet what intelligence is. Our evaluation of AI output is based solely on our subjective idea of what intelligence looks and sounds like. When people expend time, effort and money creating something, they have to sell the results of their efforts for at least as much money as they put into their products and services. To convince others, they first have to sell to themselves.