¿Y si el espacio-tiempo no fuera fundamental? | Dualidad T

What if the universe didn't distinguish between the immensely large and the infinitely small? In this video, Christian Aoufia explores the T-duality of string theory, a symmetry that shows that a very small spatial dimension can be physically equivalent to a very large one. This surprising property challenges our intuition about distance and geometry. From this idea, we'll see why T-duality is considered one of the first clues that spacetime might not be a fundamental entity, but an emergent phenomenon. This perspective has profoundly influenced the development of quantum gravity and our search for a deeper description of nature. Video by: Christian Aoufia Production: Daniel Aller, Ángel Uranga, and Laura Marcos Don't miss any videos: just... SUBSCRIBE! It's FREE!: /@iftmadrid Follow us on X! - https://x.com/ift_uam_csic INSTAGRAM! - ift_madrid TikTok! - ift_uam_csic Also on FACEBOOK! - iftmadrid We're now on Bluesky! - https://bsky.app/profile/iftuamcsic.b... And check out our website! - https://www.ift.uam-csic.es Image and video credits: Standing waves in a pond: https://www.youtube.com/watch?v=NpEev... Chapters: 00:00 What is String Theory? 00:46 Emergent Spacetime 01:45 Quantization and the Mass Tower 02:44 Strings and String Winding 03:40 T-Duality 04:50 Conclusion