Jacques Vallée..UFOs.. and the Case Against Aliens | TA

For more than 20 years after the flying saucer frenzy of the late 1940s, the Extraterrestrial Hypothesis (ETH) remained the default explanation for UFOs. Jacques Vallée, a French astronomer and ufologist, was the first to challenge the ETH, and he followed the UFO data towards some unorthodox conclusions.