[2] The book was made available via demand printing in 2004, though this version appears to contain a number of typos indicating that it was produced from something a bit earlier than the final published draft.

Since the velocity of an object at the equator of the Earth is approximately 1,000 MPH (1,674 km/h), any such rapid change in rotational axis is a massive disturbance to everything from a grain of sand to a mountain or an ocean.

[3] OOPARTs - "out of place artifacts" real-world scientific anomalies (flattened petrified forests in Nova Scotia, huge depressions in Hudson Bay and the Sahara Desert, ancient maps showing Antarctica's coastline free of ice, woolly mammoths found with un-swallowed food in their mouths) are presented as evidence of The HAB Theory's possible validity.

These OOPARTS are interpreted to suggest that human civilizations have existed on earth many times, during intervals like the current 6,000 - odd years of recorded history only to disappear over and over in yet another "capsizing."

Citing OOPARTS in support of an out-of-the-mainstream theory is a technique used in other works, including for example the well-known: Chariots of the Gods (1968) by Erich von Däniken in which they are interpreted as evidence that extraterrestrial civilizations visited pre-modern earth and influenced historic and pre-historic events.