This episode of "6 Minute English" features co-hosts Beth and Phil discussing the "Silurian hypothesis," which proposes the possibility of a technologically advanced civilization existing on Earth hundreds of millions of years ago without leaving traces. They explore why fossil evidence might be insufficient to prove such a hypothesis, citing astrophysicist Adam Frank's views on the rarity of fossilization and the brief geological timeframe of civilizations. The discussion also touches on the scientific method, the formation of consensus, and the age of the Earth, while introducing and explaining new vocabulary related to the topic.
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