After a bit of review about the sudden disappearance of the southwestern deserts’ Clovis settlements coinciding with the YDB, RC ventures further into the records of PIDBA, with maps showing the massive reduction in projectile-point finds across the US. Other studies show a hiatus of occupation in the Great Lakes Region, Belgium and also southwest Asia. After a summation, he shares a study that links the evidence for an ET event with that of the Tunguska aerial burst and the Chicxulub crater associated with the K-T Boundary impact, which includes potential options that would not leave all the required “markers” for impact – like an oblique/tangential passing of a disintegrating comet. RC had envisioned that exact scenario and modified a graphic almost twenty years ago to present as a possible explanation for the catastrophe. (Extended summary topics/notes will be available on the new website - very soon!)   Support Randall Carlson's efforts to discover and share pivotal paradigm-shifting information! Improve the quality of the podcast and future videos. Allow him more time for his research into the many scientific journals, books, and his expeditions into the field, as he continues to decipher the clues that explain the mysteries of our past, and prepare us for the future...   Donate to this work thru his Patreon subscription/membership site, and receive special perks: https://patreon.com/RandallCarlson   Podcast: http://kosmographia.com (coming soon: RandallCarlson.com)   Branch out to all things Randall at: http://RandallCarlson.net Scablands Sept/Oct REXpedition with Grimerica: http://ContactattheCabin.com/Carlson (email to be added to tour alternates/waiting list: Darren@grimerica.com)   email: Kosmographia1618@gmail.com   Full listing of scientific papers about the Younger Dryas Impact Hypothesis: https://cosmictusk.com   Kosmographia logo and design animation by Brothers of the Serpent. Check out their podcast: http://www.BrothersoftheSerpent.com/   Theme music by Fifty Dollar Dynasty: http://www.FiftyDollarDynasty.net/