Uploaded July 2026 | Updated September 2026, 2 weeks ago
Faith & the Physicist: Aliens, Astrobiology, String Theory, and the Search for Meaning
Join Professors Brian Keating, Adam Frank, and Niayesh Afshordi for a live conversation at the intersection of physics, cosmology, astrobiology, and faith.
What would the discovery of life beyond Earth mean for humanity? Can science and faith illuminate different aspects of reality? And what do ideas from string theory, the origins of life, and the cosmic search for intelligence tell us about our place in the universe?
Bring your questions for this wide-ranging live discussion with three leading physicists.
Connect with Adam:: everymansuniverse.com/subscribe
Get Niayesh's book: https://press.uchicago.edu/ucp/books/book/chicago/B/bo244963115.html
Possible discussion topics
00:00 Introductions
05:00 What do we mean by “belief” in science?
Distinguish evidence-based confidence, working assumptions, metaphysical commitments, and religious faith. When does a scientific theory become something scientists “believe,” rather than merely use?
10:00 Consensus, pluralism, and open questions in fundamental physics
Explore how much agreement actually exists about inflation, dark matter, dark energy, black holes, quantum gravity, and string theory—and why public descriptions of “the scientific consensus” can obscure genuine expert disagreement.
20:00 Belief systems behind scientific theories
Compare scientific realism, instrumentalism, structural realism, and pragmatism. Are theories descriptions of reality, predictive tools, or both? What role do elegance, naturalness, simplicity, and explanatory power play?
25:00 Cosmology and ultimate origins
What does the Big Bang establish, and what does it not establish? Address the difference between a hot dense early universe, an “absolute beginning,” inflationary scenarios, cyclic models, and quantum-cosmological proposals.
43:00 String theory, multiverses, and anthropic reasoning
Why do these ideas attract serious attention despite limited direct empirical access? Discuss the boundary between productive theoretical speculation and claims that may be difficult to test.
55:00 Astrobiology and the probability of life beyond Earth
Separate the cases for microbial life, complex life, and technological intelligence. What is supported by exoplanet science and planetary habitability research, and where do uncertainty and prior assumptions dominate?
60:00 How would discovering extraterrestrial life affect religion and philosophy?
Consider whether such a discovery would challenge, enrich, or leave unchanged major religious traditions and secular worldviews. Keep the focus on the diversity within belief systems rather than treating “religion” or “science” as monoliths.
61:00 Science communication under deep uncertainty
How should scientists communicate when evidence is incomplete but the subject has existential resonance? What is the proper role of humility, imagination, skepticism, and public trust?
Useful references
Peter Vickers et al., “Surveys of the scientific community on the existence of extraterrestrial life,” Nature Astronomy 9, 16–18 (2025). A useful starting point for separating scientists’ views on basic, complex, and intelligent extraterrestrial life.
Niayesh Afshordi, Phil Halper, Matteo Rini, and Michael Schirber, “Big Mysteries Survey: Physicists’ Views on Cosmology, Black Holes, Quantum Mechanics, and Quantum Gravity” (2026). This is likely the Afshordi/Halper paper you meant; it is central for discussing how physicists’ views cluster and diverge across foundational questions.
Alice Y. Chen, Phil Halper, and Niayesh Afshordi, “Copenhagen Survey on Black Holes and Fundamental Physics” (2025). A smaller, specialist-focused survey of views on black holes, inflation, string theory, and cosmology.
Céline Henne, Hannah Tomczyk, and Christoph Sperber, “Physicists’ Views on Scientific Realism” (2024). Helpful for the theory-belief portion of the conversation.
The American Physical Society’s overview, “Far from Settled: Respondents at Odds over Greatest Physics Mysteries” (2026), offers a readable companion to the Big Mysteries Survey.
This is not a debate over whether science or faith wins; it is a conversation about how people form justified beliefs when confronting the universe’s deepest unanswered questions.
Faith & the Physicist: Aliens, Astrobiology, String Theory, and the Search for Meaning
Join Professors Brian Keating, Adam Frank, and Niayesh Afshordi for a live conversation at the intersection of physics, cosmology, astrobiology, and faith.
What would the discovery of life beyond Earth mean for humanity? Can science and faith illuminate different aspects of reality? And what do ideas from string theory, the origins of life, and the cosmic search for intelligence tell us about our place in the universe?
Bring your questions for this wide-ranging live discussion with three leading physicists.
Connect with Adam:: everymansuniverse.com/subscribe
Get Niayesh's book: https://press.uchicago.edu/ucp/books/book/chicago/B/bo244963115.html
Possible discussion topics
00:00 Introductions
05:00 What do we mean by “belief” in science?
Distinguish evidence-based confidence, working assumptions, metaphysical commitments, and religious faith. When does a scientific theory become something scientists “believe,” rather than merely use?
10:00 Consensus, pluralism, and open questions in fundamental physics
Explore how much agreement actually exists about inflation, dark matter, dark energy, black holes, quantum gravity, and string theory—and why public descriptions of “the scientific consensus” can obscure genuine expert disagreement.
20:00 Belief systems behind scientific theories
Compare scientific realism, instrumentalism, structural realism, and pragmatism. Are theories descriptions of reality, predictive tools, or both? What role do elegance, naturalness, simplicity, and explanatory power play?
25:00 Cosmology and ultimate origins
What does the Big Bang establish, and what does it not establish? Address the difference between a hot dense early universe, an “absolute beginning,” inflationary scenarios, cyclic models, and quantum-cosmological proposals.
43:00 String theory, multiverses, and anthropic reasoning
Why do these ideas attract serious attention despite limited direct empirical access? Discuss the boundary between productive theoretical speculation and claims that may be difficult to test.
55:00 Astrobiology and the probability of life beyond Earth
Separate the cases for microbial life, complex life, and technological intelligence. What is supported by exoplanet science and planetary habitability research, and where do uncertainty and prior assumptions dominate?
60:00 How would discovering extraterrestrial life affect religion and philosophy?
Consider whether such a discovery would challenge, enrich, or leave unchanged major religious traditions and secular worldviews. Keep the focus on the diversity within belief systems rather than treating “religion” or “science” as monoliths.
61:00 Science communication under deep uncertainty
How should scientists communicate when evidence is incomplete but the subject has existential resonance? What is the proper role of humility, imagination, skepticism, and public trust?
Useful references
Peter Vickers et al., “Surveys of the scientific community on the existence of extraterrestrial life,” Nature Astronomy 9, 16–18 (2025). A useful starting point for separating scientists’ views on basic, complex, and intelligent extraterrestrial life.
Niayesh Afshordi, Phil Halper, Matteo Rini, and Michael Schirber, “Big Mysteries Survey: Physicists’ Views on Cosmology, Black Holes, Quantum Mechanics, and Quantum Gravity” (2026). This is likely the Afshordi/Halper paper you meant; it is central for discussing how physicists’ views cluster and diverge across foundational questions.
Alice Y. Chen, Phil Halper, and Niayesh Afshordi, “Copenhagen Survey on Black Holes and Fundamental Physics” (2025). A smaller, specialist-focused survey of views on black holes, inflation, string theory, and cosmology.
Céline Henne, Hannah Tomczyk, and Christoph Sperber, “Physicists’ Views on Scientific Realism” (2024). Helpful for the theory-belief portion of the conversation.
The American Physical Society’s overview, “Far from Settled: Respondents at Odds over Greatest Physics Mysteries” (2026), offers a readable companion to the Big Mysteries Survey.
This is not a debate over whether science or faith wins; it is a conversation about how people form justified beliefs when confronting the universe’s deepest unanswered questions.
