I'm talking to myself

I pretty much love the phase Jack is going through right now. On a regular basis we'll hear him talking away, and when I ask him to repeat himself he replies with, "Mommy, I'm talking to myself." And he is. He's talking about things that happened, things that never happened, things he wishes would happen, etc., Sometime he even complains about me and my husband - to himself. I guess that's what's so fun is that he suddenly has this full and complete sense of self. It's just so interesting to me to think of him as a little person, no longer a baby..