"But the more they look, the more they find. And the reason for that is that it's pretty evident that there is no one thing that's the smallest thing out of which everything else derives. Because when you look at a subatomic particle, it's not a billiard ball as we're taught in physics classes. It's more like a vibrating packet of energy, trading energy back and forth with other subatomic particles and with a background quantum field. And what happens is-it's like a little endless game of tennis. So every subatomic particle is like a shape-shifter. It's sending information back and forth, and changing as it does so with other subatomic particles."