Most Popular What If Scenarios Ever (288M VIEWS)

Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences https://underknown.com/popularscience/ 00:00 Countdown 01:09 What Would Dying on Every Planet Be Like? (Host read at 04:39) 29:26 What If We Dumped Our Trash into Volcanoes? 33:22 What If You Were Swallowed by a Whale? 37:55 What If the World Lost Oxygen for Five Seconds? 41:47 What If You Fell Into a Black Hole? 46:23 What If You Jumped Into Lake Natron? 52:16 What If You Fell Into Jupiter? 56:22 What If the Sun Exploded Tomorrow? 01:02:19 What If Megalodon Sharks Never Went Extinct? 01:07:10 What If Uranus Collided With Earth? 01:12:53 What If You Traveled One Billion Years Into the Future? 01:21:20 What If Earth Were Sucked Into a Black Hole? 01:29:18 What Happens If You Fall Into Quicksand? 01:33:00 What If Earth Was As Big As the Sun? 01:38:48 What If You Tried to Surf a Tsunami? 01:43:29 What If You Fell Into Niagara Falls? 01:49:34 What If Mosasaurus Were Still Alive? 01:54:56 What If the Earth Stopped Spinning for 5 Seconds? 02:00:09 Earth's Evolution in 10 Minutes 02:11:46 What If We Killed All Mosquitoes? 02:16:17 What If You Were the Last Person on Earth? 02:20:32 What If You Fell Into a Piranha Pool? 02:24:39 What If You Stopped Sleeping? 02:29:03 What If You Met a Time Traveler? 02:35:56 What If Jupiter Swallowed Earth? 02:42:19 What If Your Stomach Acid Disappeared? 02:48:26 What If You Lived in the Devonian Period? 02:56:34 What If You Spent 5 Seconds on Venus? 03:04:22 What If You Landed on Kepler-22 b? 03:16:54 What Happens If You Get Covid-19? Support us on Patreon: https://www.patreon.com/whatifshow/membership 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 #jupiter #spaceexploration #universe #space #2025