Grimm’s Thesis
Once upon a time in the state of Cosmos, in the musical town of Universe, on the street called Milky Way, there lived a family named System. In that family there was a daughter named Gaia, a precocious child with beautiful, watery blue-green eyes. When asked how old she was, Gaia replied, “I am 4.7 billion years old. That means I am almost five. But I might not make it to six because I have a very bad cold. I have had it for the last 60 million years or so.”