earth

Here's a conversation I recently had with Max...

Max: Mom, where's the earth?
Me: Um, well we are standing on it. It is the ground.
Max: But it is up in space?
Me: Um, well yes, it is up in space and we are up in space too. We are stuck to the earth by the pull of gravity.
Max: So, everybody is up in space?
Me: Yes.
Max: I'm up in space, you are up in space, Daddy is up in space, Madeleine is up in space, the whole world is up in space... everybody.
Madeleine: Mom, what does "everybody" mean?