Hollow Earth Theory
From RationalWiki
This topic may or may not be bullshit, and is either nonsensical or idiotic.
May damage the mind and lead to drinking of the Kool-Aid.
"If you are in possession of this revolutionary secret of science,
why not prove it and be hailed as the new Newton?
Of course, we know the answer. You can't do it. You are a fake."
Hollow Earth Theory is a pseudoscience and conspiracy theory stating that the Earth is hollow. Theories include that the inhabitants of the "Inner Earth" walk around the inside feet-up, or that a smaller sphere is inside the larger (sometimes it is stated this object works like a sun for the inner earth denizens), which is more in line with the theory of gravity, though not geology. The conspiracy aspect supposedly relates to a large hole providing access to the underworld, which is located somewhere in the arctic regions of the northern hemisphere, and the attempts to keep it quiet made by the superpowers in conjunction with whatever the Grand Theory du jour is, be it reptilians, tibetan masters, Atlanteans and/or aliens. It's not clear what supports the surface of the Earth according to this idea, since the surface of the earth we can see would most likely collapse under the force of gravity without a substrate (Liquid, in the case of the mantle and outer core, solid in the instance of the inner core).
