I just read an article that is not satisfying. Not because it is wrong (although…), but because of the findings it discussed.
I grew up being told that the average person uses 3% of their brain for conscious thought. It was my job to use more of it. (That myth that we use 10% of our brains is just that- we use our brains to see, to hear, etc- and probably most of it. But, that is not the same thing as what portion of our brain we use for cogent thinking.)