Support us on Patreon: https://www.patreon.com/whatifshow/membership 00:00 Countdown 00:05 What Happened Immediately After the Dinosaurs Went Extinct? 07:30 What If We Entered a New Ice Age? 13:51 Marathon: 12 Catastrophic Threats to the Universe Check out our other channels: How to Survive: https://bit.ly/how-to-survive-show Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w Aperture: https://bit.ly/aperture-show T-shirts and merch: http://bit.ly/whatifstore What If elsewhere: Instagram: http://bit.ly/whatif-instagram Discord: https://discord.gg/Bj5UnspbwE Podcast: http://bit.ly/yt-what-if-show-podcast What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way. Contact us at https://underknown.com/contact/ #whatif #dinosaur #beforehumans #humanity #conspiracy