wisdom and truth: the universe according to my 9 year old

my 9 year old:  mommy?  if outer space is infinite, and there's no gravity in space, then how does anyone know if the earth is right side up or upside down?  i mean, who decided that we are right side up?  like on maps and stuff.  whose idea was it to put us that way?

me:  well ... do you think we are right side up ... or upside down ... or sideways?

him:  i don't know.  i mean how can anyone know?  if one person is in space looking at the planet from one way and it's right side up, and another is in space looking at it from another way and it is upside down, the planet itself is still the same.  it doesn't move for each person's view.  so is it right side up or upside down?  who is right?
                                                           
me:  is there a right?

him:  hmmm.  good question.  i don't think so.  i think it just all depends on how you look at it.  and i think both ways are right.  because to each person it is exactly right to them.  it makes sense however you look at it, from where you are.

me:  what if there are more than 2 people looking at it?

him:  then i think all ways are right.  it's just all about perspective.  you know?

me:  :)  i know ...