I think the essence is the very unexpected idea that an irrational number (unending decimal places) can be made a whole number (to 1 part in 10 to the 12) by just a couple of simple operations. And the fact the the source of the irrational number is such a very well known number, makes you wonder if it is more than coincidence ... especially given its realtionship to the golden ratio.
Still, I guess you have to be interested in numbers, the universe, life and everything to embrace the beauty in the simplicity behind the apparent chaos. Maybe I mean I'm just weird.