A situation where a character's miraculous abilities are not so much a product of "superpowers" as this being something humans in the series universe could have but are unable to access for some reason. That is, until they reach Brain Critical Mass. This trope name comes from the oft-repeated but false assertion that humans only use 10 percent of their brains, a misquote of a foreword to Dale Carnegie's How to Win Friends and Influence People. In Real Life, we use all of our brains, just not all