This isn’t the first time you’ve watched this video. It might be your 100th, or your 100 billionth time. You see, the Universe has stopped expanding. No more stretching the fabric of spacetime. Nope. It's shrinking. And it’s going to shrink until all space and time collide into a singularity smaller than the Like button on a YouTube video. And after that, there's a real chance it inflates outward again, in the same way a star goes supernova, exploding after collapsing in on itself. Giving birth to a new universe. You've heard of the Big Bang. Well, this would be a Big Bounce. And this may have happened already, trillions of times - with you right in the middle of it. So. What exactly happens if the Universe starts shrinking? Check out DESI observatory's YouTube channel: https://www.youtube.com/@DESISurvey 00:00 What If The Universe Starts Shrinking? 01:12 This is The End 04:51 Redshift & Hubble's Discovery 06:53 Is Dark Energy Weakening? 09:02 The Math Behind the End of the Universe 09:01 The Lifespan of The Universe 10:59 The Return 12:41 Galactic Collisions & Escalating Heat 14:19 The Final Countdown to Singularity 16:51 The Big Crunch 17:21 The Big Bounce & Cyclical Universes Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community 👇 📘 The What If Book: https://bit.ly/WIFBook 📝 Articles: https://whatifshow.com/ ───────────────────────────── JOIN THE COMMUNITY ───────────────────────────── 💬 Discord: https://discord.gg/Bj5UnspbwE 📲 WhatsApp: https://whatsapp.com/channel/0029Va8VC502ER6r1yk1yP2Y 📸 Instagram: http://bit.ly/whatif-instagram 🐦 Twitter/X: http://bit.ly/whatif-twitter 📘 Facebook: http://bit.ly/facebook-whatif ───────────────────────────── SUPPORT WHAT IF ───────────────────────────── 👕 Merch: https://bit.ly/shopwhatif ❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join 🙏 Patreon: https://www.patreon.com/whatifshow/membership ───────────────────────────── MORE FROM UNDERKNOWN ───────────────────────────── 🧠 Aperture – Philosophy & Psychology: https://bit.ly/aperture-show 🆘 How to Survive – Survival Science: https://bit.ly/how-to-survive-show ───────────────────────────── 📩 Brand partnerships & collaborations: [email protected] Produced by Underknown: https://underknown.com #universe #science #space #whatif #cosmos #simulation #reality