Brian Cox Explores the Quantum Foundations of Reality š¬ | Full Interview
Discover how quantum physics shapes our understanding of reality in this insightful interview with Brian Cox. Learn why probabilities matter in the universe's fundamental nature.

Big Think
2.0M views ⢠May 16, 2025

About this video
āWe don't have enough knowledge to precisely calculate what is going to happen, and so we assign probabilities to it, which reflects our ignorance of the situation.ā
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Up next, Brian Cox on how black holes could unlock the mysteries of our universe āŗ https://www.youtube.com/watch?v=pGsbEd6w7PI
What do snowflakes, glowing street lamps, and Einsteinās ācrazyā idea have in common? Physicist Brian Cox unwinds the surprising origins of quantum mechanicsāthe theory that shattered classical physics and redefined our understanding of reality.
From Keplerās insight in a 17th-century snowstorm to Planckās revolutionary leap in 1900, Cox traces how curiosity and confusion gave rise to the most baffling theory in science.
00:00:00 Part 1: The power of quantum mechanics
00:00:24 What are considered the earliest glimpses of quantum mechanics?
00:06:39 How did Einstein's work on the photoelectric effect impact science?
00:12:17 How does quantum physics conflict with classical theory?
00:17:11 What is the double-slit experiment?
00:26:25 Why is it important that we seek to solve the mysteries of quantum physics?
00:33:30 Part 2: The fundamental measurements of nature
00:45:15 What kinds of insights does the Planck scale reveal?
00:52:15 Where does our comprehension of scale break down?
01:01:30 Part 3: The frontiers of the future
01:10:21 How can humanity influence the universe?
Read the video transcript āŗ https://bigthink.com/series/full-interview/brian-cox-full-interview/?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 on how black holes could unlock the mysteries of our universe āŗ https://www.youtube.com/watch?v=pGsbEd6w7PI
What do snowflakes, glowing street lamps, and Einsteinās ācrazyā idea have in common? Physicist Brian Cox unwinds the surprising origins of quantum mechanicsāthe theory that shattered classical physics and redefined our understanding of reality.
From Keplerās insight in a 17th-century snowstorm to Planckās revolutionary leap in 1900, Cox traces how curiosity and confusion gave rise to the most baffling theory in science.
00:00:00 Part 1: The power of quantum mechanics
00:00:24 What are considered the earliest glimpses of quantum mechanics?
00:06:39 How did Einstein's work on the photoelectric effect impact science?
00:12:17 How does quantum physics conflict with classical theory?
00:17:11 What is the double-slit experiment?
00:26:25 Why is it important that we seek to solve the mysteries of quantum physics?
00:33:30 Part 2: The fundamental measurements of nature
00:45:15 What kinds of insights does the Planck scale reveal?
00:52:15 Where does our comprehension of scale break down?
01:01:30 Part 3: The frontiers of the future
01:10:21 How can humanity influence the universe?
Read the video transcript āŗ https://bigthink.com/series/full-interview/brian-cox-full-interview/?utm_source=youtube&utm_medium=video&utm_campaign=youtube_description
----------------------------------------------------------------------------------
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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Video Information
Views
2.0M
Likes
29.1K
Duration
01:19:42
Published
May 16, 2025
User Reviews
4.8
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