Aging
Infants In our childhood, we ardently use our brains to find regularities in this 'new and complicated world' Trying to make sense out of this chaotic world As we grow, we succeed in finding so-called regularities (which is never perfect like mathematics, but useful), thus making lives simpler, which means not needing to use brains as ardently Life becomes simpler Those life's regularities are not perfect So many exceptions are there But, enough to subsist as mediocre The error-reward ratio is reasonable! (error: originated from the regularities not being perfect reward: no need to use brain, with good amount of success rate of the regularities) So we settle! We stop using brain And that's how aging happens