Analyzing ETH
In a 1969 lecture U.S. astrophysicist Carl Sagan said:
- "The idea of benign or hostile space aliens from other planets visiting the earth an emotional idea. There are two sorts of self-deception here: either accepting the idea of extraterrestrial visitation by space aliens in the face of very meager evidence because we want it to be true; or rejecting such an idea out of hand, in the absence of sufficient evidence, because we don't want it to be true. Each of these extremes is a serious impediment to the study of UFOs.".
Similarly, British astrophysicist Peter A. Sturrock wrote that for many years,
- "discussions of the UFO issue have remained narrowly polarized between advocates and adversaries of a single theory, namely the extraterrestrial hypothesis ... this fixation on the ETH has narrowed and impoverished the debate, precluding an examination of other possible theories for the phenomenon."
Read more about this topic: Extraterrestrial Hypothesis
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