Uploaded March 2026 | Updated September 2026, 1 week ago
Roger Penrose, Claudia de Rham, and Avshalom Elitzur debate the possibility of higher dimensions and the arguments surrounding string theory.
Is it game over for string theory?
With a free trial, you can watch the full debate NOW at iai.tv/video/journey-to-other-dimensions-roger-penrose?utm_source=YouTube&utm_medium=description
Most of us take it for granted that there are three dimensions, perhaps four if we count time. But for over 200 years, mathematicians and scientists have proposed further dimensions. In some standard versions of contemporary physics eleven dimensions are now proposed. But might the notion of additional dimensions be an empty idea that derails physics? Richard Feynman argued that proponents of extra dimensions "cook up explanations" for what we can't observe. And CERN researchers admit that no empirical evidence for extra dimensions has ever been, and more importantly perhaps could ever be, discovered.
Should we reject talk of higher dimensions as fantasy, good for sci-fi movies but not for theories of the universe? Would we be better to see extra dimensions as a mathematical tool rather than a description of reality? Or might multiple dimensions in fact describe the essential character of the world?
#stringtheory #physics #quantumphysics #dimensions #quantum
Nobel prize-winner Roger Penrose, philosopher of quantum mechanics Avshalom Elitzur, and theoretical physicist Claudia de Rham debate the possibility of multiple dimensions. Hosted by Güneş Taylor.
The Institute of Art and Ideas features videos and articles from cutting edge thinkers discussing the ideas that are shaping the world, from metaphysics to string theory, technology to democracy, aesthetics to genetics. Subscribe today! iai.tv/subscribe?utm_source=YouTube&utm_medium=description&utm_campaign=journey-to-other-dimensions-roger-penrose
00:00 What Albert Einstein would say about higher dimensions
00:24 Roger Penrose on string theory, infinities, and fields in spacetime
04:24 Claudia de Rham on scientific curiosity
07:46 Avshalom Elitzur on relativity, quantum mechanics, and the fourth dimension of time
12:15 Understanding the role that extra dimensions play in physics
For debates and talks: iai.tv
For articles: iai.tv/articles
For courses: iai.tv/iai-academy/courses
Roger Penrose, Claudia de Rham, and Avshalom Elitzur debate the possibility of higher dimensions and the arguments surrounding string theory.
Is it game over for string theory?
With a free trial, you can watch the full debate NOW at iai.tv/video/journey-to-other-dimensions-roger-penrose?utm_source=YouTube&utm_medium=description
Most of us take it for granted that there are three dimensions, perhaps four if we count time. But for over 200 years, mathematicians and scientists have proposed further dimensions. In some standard versions of contemporary physics eleven dimensions are now proposed. But might the notion of additional dimensions be an empty idea that derails physics? Richard Feynman argued that proponents of extra dimensions "cook up explanations" for what we can't observe. And CERN researchers admit that no empirical evidence for extra dimensions has ever been, and more importantly perhaps could ever be, discovered.
Should we reject talk of higher dimensions as fantasy, good for sci-fi movies but not for theories of the universe? Would we be better to see extra dimensions as a mathematical tool rather than a description of reality? Or might multiple dimensions in fact describe the essential character of the world?
#stringtheory #physics #quantumphysics #dimensions #quantum
Nobel prize-winner Roger Penrose, philosopher of quantum mechanics Avshalom Elitzur, and theoretical physicist Claudia de Rham debate the possibility of multiple dimensions. Hosted by Güneş Taylor.
The Institute of Art and Ideas features videos and articles from cutting edge thinkers discussing the ideas that are shaping the world, from metaphysics to string theory, technology to democracy, aesthetics to genetics. Subscribe today! iai.tv/subscribe?utm_source=YouTube&utm_medium=description&utm_campaign=journey-to-other-dimensions-roger-penrose
00:00 What Albert Einstein would say about higher dimensions
00:24 Roger Penrose on string theory, infinities, and fields in spacetime
04:24 Claudia de Rham on scientific curiosity
07:46 Avshalom Elitzur on relativity, quantum mechanics, and the fourth dimension of time
12:15 Understanding the role that extra dimensions play in physics
For debates and talks: iai.tv
For articles: iai.tv/articles
For courses: iai.tv/iai-academy/courses
