Brian Cox: Why black holes could hold the secret to time and space | Full Interview
āCould black holes be the key to a quantum theory of gravity, a deeper theory of how reality, of how space and time works?ā Subscribe to Big Think on YouTub...

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2.5M views ⢠Jul 11, 2025

About this video
āCould black holes be the key to a quantum theory of gravity, a deeper theory of how reality, of how space and time works?ā
Subscribe to Big Think on YouTube āŗ https://www.youtube.com/channel/UCvQECJukTDE2i6aCoMnS-Vg?sub_confirmation=1
Up next, Brian Cox: The quantum roots of reality āŗ https://www.youtube.com/watch?v=kO41iURud9c&pp=0gcJCY0JAYcqIYzv
Black holes are forcing us to rethink everything we know about the very foundations and limits of physics. These mysterious objects challenge our understanding of time, space, and information. In this full interview from 2023, Physicist Brian Cox explains why black holes arenāt just theoretical endpoints, but could lead us to a deeper understanding of reality altogether.
What happens to information that falls into a black hole? Can space and time emerge from something more fundamental? And why did Einstein, Hawking, and generations of physicists struggle with the idea that these objects could even exist?
00:00:00 Black holes and the edge of physics
00:01:44 Hawkingās work
00:02:47 Historical roots
00:13:18 The āend of timeā inside black holes
00:20:26 The black hole information paradox
00:24:31 Black holes and quantum computing
00:26:04 Supermassive black holes and galaxy formation
00:52:37 Alien life and the Fermi paradox
00:56:10 Rare Earth hypothesis
01:00:30 Von Neumann probes
01:02:13 The Dark Forest Hypothesis
01:06:32 The Great Filter
01:09:09 Earthās near-destruction
01:10:11 The Great Silence
01:14:38 Preserving intelligence
Read the video transcript āŗ https://bigthink.com/series/full-interview/brian-cox-black-holes/?utm_source=youtube&utm_medium=video&utm_campaign=youtube_description
Check out our other videos from Brian Coxās 2023 interview: Brian Cox on how black holes could unlock the mysteries of our universe āŗ https://www.youtube.com/watch?v=pGsbEd6w7PI Brian Cox on quantum computing and black hole physics āŗ https://www.youtube.com/watch?v=laGXRs9Ce70 Why havenāt we found aliens? A physicist shares the most popular theories āŗ https://www.youtube.com/watch?v=dTjgrG2UY30
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Go Deeper with Big Think:
āŗBecome a Big Think Member
Get exclusive content, early, ad-free access to new releases, and more. https://www.youtube.com/@bigthink/membership/
āŗGet Big Think+ for Business
Engage learners like never before with high-impact video microlearning from the biggest thinkers in the world. https://bigthink.com/plus/?utm_source=youtube&utm_medium=video&utm_campaign=youtube_description
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About Brian Cox:
Brian Cox obtained a first class honors degree in physics from the University of Manchester in 1995 and in 1998 a Ph.D. in High Energy Particle Physics at the DESY laboratory in Hamburg. He is now Professor of Particle Physics at the University of Manchester, The Royal Society Professor for Public Engagement in Science and a Fellow of the Royal Society.
Brian is widely recognized as the foremost communicator for all things scientific, having presented a number of highly acclaimed science programs for the BBC watched by billions internationally including āAdventures in Space and Timeā (2021), āUniverseā (2021), āThe Planetsā (2018), āForces of Natureā (2016), āHuman Universeā (2014), āWonders of Lifeā (2012), āWonders of the Universeā (2011) and āWonders of the Solar Systemā (2010).
As an author, Brian has also sold over a million books worldwide including āBlack Holesā, āUniversal: A Guide to the Cosmosā, āQuantum Universeā and āWhy Does E=mc2?ā with co-author Professor Jeffrey Forshaw. He has set several world records for his sell-out live tours, including his most recent tour Horizons which has taken in venues across the globe.
Subscribe to Big Think on YouTube āŗ https://www.youtube.com/channel/UCvQECJukTDE2i6aCoMnS-Vg?sub_confirmation=1
Up next, Brian Cox: The quantum roots of reality āŗ https://www.youtube.com/watch?v=kO41iURud9c&pp=0gcJCY0JAYcqIYzv
Black holes are forcing us to rethink everything we know about the very foundations and limits of physics. These mysterious objects challenge our understanding of time, space, and information. In this full interview from 2023, Physicist Brian Cox explains why black holes arenāt just theoretical endpoints, but could lead us to a deeper understanding of reality altogether.
What happens to information that falls into a black hole? Can space and time emerge from something more fundamental? And why did Einstein, Hawking, and generations of physicists struggle with the idea that these objects could even exist?
00:00:00 Black holes and the edge of physics
00:01:44 Hawkingās work
00:02:47 Historical roots
00:13:18 The āend of timeā inside black holes
00:20:26 The black hole information paradox
00:24:31 Black holes and quantum computing
00:26:04 Supermassive black holes and galaxy formation
00:52:37 Alien life and the Fermi paradox
00:56:10 Rare Earth hypothesis
01:00:30 Von Neumann probes
01:02:13 The Dark Forest Hypothesis
01:06:32 The Great Filter
01:09:09 Earthās near-destruction
01:10:11 The Great Silence
01:14:38 Preserving intelligence
Read the video transcript āŗ https://bigthink.com/series/full-interview/brian-cox-black-holes/?utm_source=youtube&utm_medium=video&utm_campaign=youtube_description
Check out our other videos from Brian Coxās 2023 interview: Brian Cox on how black holes could unlock the mysteries of our universe āŗ https://www.youtube.com/watch?v=pGsbEd6w7PI Brian Cox on quantum computing and black hole physics āŗ https://www.youtube.com/watch?v=laGXRs9Ce70 Why havenāt we found aliens? A physicist shares the most popular theories āŗ https://www.youtube.com/watch?v=dTjgrG2UY30
----------------------------------------------------------------------------------
Go Deeper with Big Think:
āŗBecome a Big Think Member
Get exclusive content, early, ad-free access to new releases, and more. https://www.youtube.com/@bigthink/membership/
āŗGet Big Think+ for Business
Engage learners like never before with high-impact video microlearning from the biggest thinkers in the world. https://bigthink.com/plus/?utm_source=youtube&utm_medium=video&utm_campaign=youtube_description
----------------------------------------------------------------------------------
About Brian Cox:
Brian Cox obtained a first class honors degree in physics from the University of Manchester in 1995 and in 1998 a Ph.D. in High Energy Particle Physics at the DESY laboratory in Hamburg. He is now Professor of Particle Physics at the University of Manchester, The Royal Society Professor for Public Engagement in Science and a Fellow of the Royal Society.
Brian is widely recognized as the foremost communicator for all things scientific, having presented a number of highly acclaimed science programs for the BBC watched by billions internationally including āAdventures in Space and Timeā (2021), āUniverseā (2021), āThe Planetsā (2018), āForces of Natureā (2016), āHuman Universeā (2014), āWonders of Lifeā (2012), āWonders of the Universeā (2011) and āWonders of the Solar Systemā (2010).
As an author, Brian has also sold over a million books worldwide including āBlack Holesā, āUniversal: A Guide to the Cosmosā, āQuantum Universeā and āWhy Does E=mc2?ā with co-author Professor Jeffrey Forshaw. He has set several world records for his sell-out live tours, including his most recent tour Horizons which has taken in venues across the globe.
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Views
2.5M
Likes
37.8K
Duration
01:18:30
Published
Jul 11, 2025
User Reviews
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