Scientific digs tells us Beryllium-10 deposits spiked thirty-three thousand years ago and sixty thousand years ago in the Antarctic. The meaning for this that scientists conjecture is at those times there may have been interstellar clouds that infiltrated the Solar System and radiated the Earth, responsible for havoc on its habitability for life.

As a science fiction writer I take notice that the digs were at the South Pole rather than the North, where the current preoccupation with the thinning of the ozone layer is. This makes the fiction writer in me conjecture that at least one of these times there was also a switch in Earth’s polarity resulting in the current polarity. That is why I have Dr. Moreau worried that the Earth’s polarity may shift again. But am I advancing fiction, or a scientific theory?