It is a well-known reality that we use only a tiny slice of our total brain potential. Yet a lot of people have forever pondered, why not use more of it? Why drain it? Does this mean that humans are ignorant and fail to use their entire brains? Some might claim that such a notion is evident because you only want to ride on the freeway and question if these motorists are even using 1% sometimes? And maybe that is all they are using when they put up that single finger signal to you while striving to manage their car?
One reflection on the volume of the brain used at any one time might be that we cannot use all of our minds simultaneously, perhaps because if all the neurons were activated at once, we might gleam in the dark? Maybe that might be good for discovering our way in a cave? But in all seriousness, it seems that humans are not using their brains to their peak and have not for a long time. We know from other body parts that if you do not use anything, then you lose it. Keeping the body alive is why I started hitting the gym recently
There are scholars who can memorize overflowing amounts of knowledge. There may be an upper limit to this, which could be an argument because all this unnecessary information could cause useless clutter. A 16-year-old who can finish the University Level College course and obtain a degree is indeed an exception in our day and age, but we do know that it is possible, don’t we? So to your point, I too ask the question, why not more? Why not everybody?
I believe that expectations are too low. I also think that the practice of teaching using memorization of figures to make words and words to make sentences is a barrier and that we are forced to teach math using shapes and concepts instead of using ideas, predictions, and notions? Perhaps. We may limit ourselves by teaching our brains to think the wrong way, unnaturally, that blocks us from working to greater perceptions and understanding more.