Hubbard's Caveman.

Moving on into the text however, it turns out that true to its original title, the whole thing is mainly about reincarnation, memories of past lives, “auditing”, the “E-meter”, evil “theta beings” possessing people, and how to become “clear” from these malicious spirits. We’re not dealing with named palaeontological or archaeological finds or sites. Instead Hubbard envisions people carrying memories of being various pre-human animals along an imagined Chain of Being, then the Piltdown Man (debunked by radiocarbon in 1953) and the Caveman on the book’s cover. This is the “history of man”. But Hubbard never explains the basis for his assertions, never refers to other writers or excavations or labwork other than in general nameless terms. He’s delivering Revealed Truth. The voice in this confused tirade of a book is authoritarian yet clearly slightly mad. (Insiders have reported that some of the material was actually dictated by Hubbard’s 17-y-o son after the father dosed him liberally with amphetamines.)


http://scienceblogs.com/aardvarchaeology/2012/08/21/hubbards-caveman/