So, the Girl (a.k.a. "Roo) says, "Mommy, how did the world become the world?"
Me: That's a very good question, Roo! People have different answers to that question [and I go on to explain the Big Bang Theory and the Creation Theory in brief].
Roo: Well, I think when it all exploded everything was all burned, and then seeds were dropped down, like House seeds and Tree seeds and Sidewalk seeds. And then it all burned again. And then the seeds were dropped again. And that's how it was made. And then the sky exploded and all of the birds came out. And then . . .
She went on until we got to dance class, but since we were in the car and I couldn't write it down, and since it was all so detailed, and since it was last Saturday, I can't remember all of the rest.
A good theory she has there . . .