My daughter who is in Kindergarten just completed her first science project, "How Do Worms Dig?" Doesn't it seem so much more fun reliving the learning experience second hand through the senses and thoughts of your child than it was the first time? BTW, she concluded that, "The worm wiggles around until it finds a mushy spot with its head and then stretches and scrunches it's body to push itself downwards into the dirt." She took honorable mention, I might add :). I must say, this is much the same with new ideas in the marketplace. We discover an idea whose opportunity seems most likely to take hold and then expand our thoughts to push deeper down, and contract as we execute on them.