For all my education accomplishments and so called 'wisdom'... I can't fathom my own heart.
For most people we often marvel at the beauty of a sunrise or the magnificence of a full moon but it is impossible to fathom the magnitude of the universe that surrounds us.
You can't possibly fathom the ins and outs of a prepubescent beauty treatment until you've felt the strange but exhilarating tingle of a cottage-cheese-and-Pop-Rocks facial.
In fact when you combine stem cell technology with the technology known as tissue engineering you can actually grow up entire organs so as you suggest that sometime in the future you get in an auto accident and lose your kidney we'd simply take a few skin cells and grow you up a new kidney. In fact this has already been done.