Where's the Learning Curve?

I realize that all parents want their children to be intelligent, fast learners. This is true of Josh and me, although I wish that motor development wasn't something that Elizabeth seemed to excel at. Today as Josh and I were finishing up dinner, we looked up to see Elizabeth walking down the hallway as if this was totally natural. So now the little bugger has learned to get up into the walking position without help from the wall and can string together 6 or 7 steps...all of this in less than a week. I'm sure by Sunday she'll be training for her next marathon!