Why?

My two year old's most recent favorite question is "why?"  She likes to ask why to everything.  For example:

Me:  It's time to eat dinner.  Her:  Why?
Me:  It's time to take a nap.  Her:  Why?
Me:  Stop playing with the door stopper.  Her:  Why?
Me:  Don't eat the cheese that fell on the floor.  Her:  Why?
Me:  It's time to put your toys away.  Her:  Why?
Me:  Don't climb on the roof and pretend to be Superman and jump off.  Her:  Why?

Okay, so the last one never happened, but you get my point!

Maybe I have a future scientist on my hands?  A good scientist is always asking "why?"  She also has a big smile on her face whenever she asks why.  Another sign of a future scientist?  Scientists are happy and excited to ask the why question.  Who knows what the future may hold for her?