User:Feoffer/sandbox Invisible Residents

Invisible Residents is a 1970 work by American paranormal and cryptozoology author Ivan T. Sanderson. It argues that 'a technological civilization could have evolved under the waters of this earth'.

Synopsis
In contrast to those who claim UFOs are extraterrestrials in origin, Sanderson argues they are could be indigenous to Earth's oceans. Writes Sanderson: "I contend that if we will stick to being logical, there is no reason (a) why there could not be an extremely advanced civilization underwater (b) why it might not be up to twice as old as ours (c) why it should not have developed what we call 'space flight' (d) why it should not be so far in advance of us technically that we would never have noticed it until we started to develop a few really sensitive gadges."

Sanderson claims Navy submarines have tracked underwater object travelling over 200 miles per hour. Sanderson argues that over half of UFO sightings take place in conjunction with water.

Invisible Residents mixes UFO folklore with Bermuda Triangle mythology, citing the disappearance of the USS Cyclops, the loss of the SS Marine Sulphur Queen, and the Mary Celeste as examples of allegedly-mysterious events.

Like other ancient aliens theorist, Sanderson discusses a small ancient artifact from Colombia which he believes resembles 20th-century aircraft. Sanderson argues that "Vile Vortices" are supposed to be "anomalic regions" regularly distributed on Earth where disproportionately many strange phenomena occur, such as disappearances, UFO sightings, or poltergeist activity. The first and second "vile vortex" were the Bermuda Triangle and the Devil's Sea. He also suggests the existence of a "second gravitational field" could explain the losses.

Reception
In 1971, Invisible Residents was cited in lists of best sellers and popular books. Sanderson's tale of mysterious unidentified submerged objects continues to be part of UFO folklore in the 21st century.