The rapid decay of the earths magnetic field, predicted by the rigorous theoretical treatment of Horace Lamb and confirmed by 130 years of real time measurement, is presented as strong evidence that the earth’s magnetic field is Thousands and not millions or billions of years old. Attempts to substantiate a "geologic age" for the earth’s magnetic field through a hypothesized self-excited dynamo to sustain the magnetic field are shown to be futile. Paleomagnetic "evidence" for reversals in the earth’s magnetic field is shown, by references to the technical literature, to be fraught with inconsistencies and incapable of providing acceptable evidence for a long age for the magnetic field.