Types of evidence can be classified as footprints, that are obvious - like an impact crater, or fingerprints, that require enhancements with technology to assess – like the spectrum of microspherules at the YDB horizon or the variety of indicators that are retrieved from ice cores. RC details the differences between airbursts and impacts, along with the types of incoming objects and the effects that they create, revealing why the estimates of geocosmic encounters is way too low. Then going into the research papers that compare evidence between Tunguska, YDB and KTB events, and present comparable evidence across multiple sites on three continents, Randall commits to rout out the devil in the details, and the guys marvel at the type of event that would create the temperatures necessary to boil quartz.   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 Or make a one-time donation thru PayPal, credit/debit card or other account here: https://www.paypal.com/cgi-bin/webscr...   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 the Brothers of the Serpent. Check out their podcast: http://www.BrothersoftheSerpent.com/   Theme music by Fifty Dollar Dynasty: http://www.FiftyDollarDynasty.net/   Video recording, editing and publishing by Bradley Young with YSI Productions LLC (copyrights), with audio mastered by Kyle Allen.   LINKS: Ice wall showing annual layers: https://www.washington.edu/news/2013/... Abu Hureyra news article: https://www.smithsonianmag.com/scienc...