Now that mine is almost over, I can say that the one thing that struck me most about life is the capacity for change. One day you're a person and the next day they tell you you're a dog. At first it's hard to bear, but after a while you learn not to look at it as a loss. There's even a moment when it becomes exhilarating to realize just how little needs to stay the same for you to continue the effort they call, for lack of a better word, being human.