we could find a way of saying WE LIVED IN THE AGE OF PISCES, and could specify the altitude above the horizon of certain identifiable stars in our own epoch (say, the prominent belt stars of the Orion constellation), we would be able to signal our dates to future generations with greater precision. Alternatively we could do as the builders of the Giza pyramids appear to have done and lay out our monuments in a pattern on the ground reflecting exactly the pattern of the stars in the sky in our time.

