Help us win a Webby by voting here: https://bit.ly/VoteWhatIf 00:00 Countdown 00:05 What If an Advanced Civilization of Humans Existed Millions of Years Ago? 04:24 What If an Advanced Civilization Lived in the Amazon? 10:39 What If You Lived in the Prehistoric Era? 19:38 What If You Lived in Ancient Egypt? 25:46 What if We Become a Type 1 Civilization? 30:40 Scientists Discovered Traces of Type II Civilization 38:36 What If Humans Suddenly Went Extinct 47:16 What If Aliens Came to Earth a Million Years in the Future? 54:59 What If Aliens Were Living Inside Earth? 59:48 What If we discovered alien life? Support us on Patreon: https://www.patreon.com/whatifshow/membership From the sun going rogue to unstoppable infections and nature’s wildest disasters—today we explore every way humanity could meet its end. For our full disclaimer, please visit: (https://bit.ly/41TKxGI) Check out our other channels: How to Survive: https://bit.ly/how-to-survive-show 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 #space #solarsystem #moon