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Into the Impossible With Brian Keating

The Loop Quantum Gravity War

17 min • 8 oktober 2024

A few weeks ago, I released a video about whether string theory’s biggest competitor, Loop Quantum Gravity, might have suffered a fatal blow.

The video sparked a lively debate across YouTube, with creators like Sabine Hossenfelder and Phil Halpern making reaction videos and Carlo Rovelli even reaching out to me personally, asking me to take it down.

Now, I want to clarify the situation and share my perspective on whether Loop Quantum Gravity is truly on its last legs—or if there’s more to the story. 

Tune in to the Loop Quantum Gravity War!


Key Takeaways: 


  • 00:00 Intro
  • 01:02 My initial video on loop quantum gravity 
  • 03:42 Quick recap of my correspondence with Carlo Rovelli
  • 04:32 The problem with string theory and loop quantum gravity
  • 09:25 Reacting to Sabine’s video 
  • 13:11 My final thoughts 


Additional resources: 


➡️ Check out the videos referenced: 

🔔 Sabine’s video: https://www.youtube.com/watch?v=ZlHvW6k2bcM 

🎙️ Phil’s video: https://www.youtube.com/watch?v=S5CzrLuCRS4


➡️ Follow me on your fav platforms:

✖️ Twitter: https://x.com/DrBrianKeating

🔔 YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1

📝 Join my mailing list: https://briankeating.com/list

✍️ Check out my blog: https://briankeating.com/cosmic-musings/

🎙️ Follow my podcast: https://briankeating.com/podcast

✨ Member's only playlist: https://www.youtube.com/playlist?list=UUMOmXH_moPhfkqCk6S3b9RWuw


Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known.


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