FQxI Podcast

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In their own words

Physics podcast from the Foundational Questions Institute (FQxI)

Why you'd press play

Dark energy might have changed everything; you get to hear the physicists argue about the 'might.'

Press play if you want

  • to hear why DESI and ACT do not give you the same verdict on dark energy
  • to have a physicists' survey complicate what you thought everyone believed about quantum theory
Read the full recommendation in PlayNext →

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Best episodes of FQxI Podcast

Short reviews from the PlayNext desk, based on the episodes we processed.

The Year in Physics Review 2025Dec 31, 2025

A curious physics countdown where a 90-vertex shape shares space with a discovery that changed a class mid-lesson.

The FQXI Podcast's end-of-year physics countdown is strongest when big abstractions turn into things a listener can almost hold: life's possible asteroid origins, a shape passing through itself, and the persistent lure of impossible machines.

Poltergeist and Primordial Black Holes: Cosmologist Bernard Carr on Physics and the ParanormalOct 31, 2025

Bernard Carr links primordial black holes, Hawking radiation, and paranormal research at the edges of physics.

Physics takes on an awkward brief here: make room for poltergeist reports of moving furniture, fires, odd electrical behavior, and broken bulbs, while also asking whether primordial black holes could explain dark matter.

FQxI's Essay Competition Asks How Quantum is Life? Plus Plant Intelligence, Physicists Surveyed on Controversial Opinions & Should Journals Pay Peer Reviewers?Oct 3, 2025

A wide-ranging science episode links quantum biology, plant communication, physicists' beliefs, and the economics of peer review.

FQXI's episode moves from a $53,000 essay competition on quantum life to plant communication, physicists' views on major science questions, and the case for paying peer reviewers.

Dark Energy Bombshell? Cosmic Results from DESI and ACT & Rethinking Gatekeeping in Science PublishingJun 1, 2025

A cosmology tension sits beside a live experiment in more open scientific review.

Cosmology's tidy baseline gets a careful stress test as DESI reports a three-to-four-sigma tension with constant dark energy, while ACT still supports the lambda cold dark matter model.

The Origin of Life, Assembly Theory & the Problems with Peer ReviewFeb 18, 2025

A theory of life's beginnings meets a hard look at how peer review shapes science.

The episode approaches the origin of life through assembly theory, with attention to complexity, causal history, and time. Sarah Imari Walker frames the idea around objects extending across time, then gives it a useful pressure test: a technological object such as a Dyson sphere…

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Episodes

  1. 1

    The Year in Physics Review 2025

    Hidden gem

    Ian Durham compares the Kakeya result to "perfecting a perpetual motion machine."

    Dec 31, 2025·1h 22m·2 clips
  2. 2

    Poltergeist and Primordial Black Holes: Cosmologist Bernard Carr on Physics and the Paranormal

    Hidden gem

    Bernard Carr says psychical research forms a bridge between science and spirituality.

    Oct 31, 2025·1h 9m·2 clips
  3. 3

    FQxI's Essay Competition Asks How Quantum is Life? Plus Plant Intelligence, Physicists Surveyed on Controversial Opinions & Should Journals Pay Peer Reviewers?

    Hidden gem

    Catalina Cucciano says lentil seeds in a dark chamber produced biophotons with a pattern that "looks like a grammar".

    Oct 3, 2025·1h 41m·2 clips
  4. 4

    Dark Energy Bombshell? Cosmic Results from DESI and ACT & Rethinking Gatekeeping in Science Publishing

    Hidden gem

    DESI shows a three to four sigma tension, while ACT still fits lambda cold dark matter well.

    Jun 1, 2025·51m·2 clips
  5. 5

    The Origin of Life, Assembly Theory & the Problems with Peer Review

    Hidden gem

    Lee Cronin's lab and NASA samples led to an "assembly index above 15" only in biological samples.

    Feb 18, 2025·26m·1 clip
  6. 6

    The Year in Physics Review 2024

    Dec 31, 2024·1h 15m
  7. 7

    The Universal Constructor: A Conversation with David Deutsch

    Feb 17, 2024·30m
  8. 8

    The Year in Physics Review 2023 Part 3

    Dec 31, 2023·43m
  9. 9

    The Year in Physics Review 2023 Part 2

    Dec 29, 2023·27m
  10. 10

    The Year in Physics Review 2023: Part 1

    Dec 28, 2023·25m
  11. 11

    Is there a Theory of Everything? Great Mysteries of Physics Part 6

    Dec 24, 2023·1h 1m
  12. 12

    What is Life? What is Consciousness? Great Mysteries of Physics Part 5

    Apr 7, 2023·51m
  13. 13

    Does Objective Reality Exist? Great Mysteries of Physics Part 4

    Apr 3, 2023·57m
  14. 14

    Is There a Multiverse? Great Mysteries of Physics Part 3

    Mar 25, 2023·45m
  15. 15

    Is Our Universe Fine-Tuned For Life? Great Mysteries of Physics Part 2

    Mar 17, 2023·46m
  16. 16

    Is Science Becoming Less Disruptive?

    Mar 16, 2023·49m
  17. 17

    Is Time an Illusion? Great Mysteries in Physics Part 1

    Mar 8, 2023·47m
  18. 18

    The Year in Physics Review Part 3: Concluding our countdown of the biggest stories in physics, as chosen by quantum physicist Ian Durham.

    Dec 31, 2022·48m
  19. 19

    The Year in Physics Review Part 2: Continuing our countdown of the biggest stories in physics, as chosen by quantum physicist Ian Durham.

    Dec 30, 2022·31m
  20. 20

    The Year in Physics Review Part 1: Beginning our countdown of the biggest stories in physics, as chosen by quantum physicist Ian Durham. We start with a discussion about whether a wormhole really was created in a quantum computer, in the lab?

    Quantum physicist Ian Durham discusses the year's biggest physics stories, including a simulation of a traversable wormhole on a quantum computer.

    Dec 28, 2022·44m
  21. 21

    Testing Time: Quantum physicists Fabrizio Piacentini and Laura Knoll discuss their recent experiment testing the predictions of Constructor Theory, a new meta-framework of physics that may encompass all other theories. The new framework could solve the...

    Aug 20, 2022·34m
  22. 22

    Happy Higgs-versary! Particle physicist Kevin Black tells Zeeya Merali about the LHC's new quest. Also, time-travel at the LHC, an update on the W Boson tests with Frank Wilczek; Catalina Curceanu on testing the origin of consciousness; & Queensland...

    Jun 30, 2022·52m
  23. 23

    The End of Everything: Astrophysicist Katie Mack on her book describing ways to destroy the universe, & on hints of new physics at the LHC; a quantum engine that heats & cools simultaneously; how the thermodynamic gradient may have driven the evolution of...

    Jun 27, 2022·52m
  24. 24

    'Quantum dots' can teach us about thermodynamics in the nanorealm.

    Jun 21, 2022·10m
  25. 25

    Time's Arrow: A conversation with Paul Davies about time's irreversible flow, black holes, memories of Stephen Hawking and the information paradox, Maxwell's demon and living systems -- and how to improve universities. With Logan Chipkin.

    Jun 9, 2022·1h
  26. 26

    Quantum Steampunk: Physicist Nicole Yunger Halpern talks about her new book on quantum thermodynamics, temperatures below absolute zero, and the physics of yesterday's tomorrow.

    May 18, 2022·46m
  27. 27

    Constructor Theory and Irreversibility: A conversation with Chiara Marletto and Vlatko Vedral on a novel unification between information theory and thermodynamics and their recent experiment that tested, and corroborated, the constructor theoretic notion...

    Apr 20, 2022·52m
  28. 28

    Eerie quantum Aharanov-Bohm effect demonstrated for gravity; mysteries about the nature of time; how choices can curve spacetime; and the Science of Can and Can't.

    Mar 31, 2022·1h
  29. 29

    Information as Fuel. Quantum physicist Natalia Ares describes her quest to test thermodynamics in the quantum realm with carbon nanotubes. Philosopher Owen Maroney and theoretical physicist Janet Anders explain what such experiments can teach us about the...

    Mar 10, 2022·27m
  30. 30

    2021: The Year in Physics Review Part 3. FQXi's annual countdown of the physics highlights concludes, with quantum physicist Ian Durham.

    Dec 31, 2021·43m
  31. 31

    2021: Year in Physics Review Part 2. Our rundown of the physics highlights of the year continues, with quantum physicist Ian Durham.

    Dec 30, 2021·26m
  32. 32

    2021: Year in Physics Review Part 1. Beginning our countdown of the biggest and best stories in physics, with quantum physicist Ian Durham.

    Dec 28, 2021·18m
  33. 33

    Schrödinger's Tardigrade: Has a multicellular organism really been entangled with a superconducting qubit? Physicist Vlatko Vedral defends his team's controversial claims; Mitch Waldrop discusses the long-running Hubble tension saga and the launch of the...

    Dec 24, 2021·59m
  34. 34

    Breakthrough Prize winner Jun Ye talks optical lattice clocks; the thermodynamic cost of timekeeping with Marcus Huber; & microbead minimotors help John Bechhoefer investigate information processing in nanomachines and biological systems.

    Sep 27, 2021·50m
  35. 35

    The Disordered Cosmos: Physicist Chanda Prescod-Weinstein discusses the hunt for axions, her new book on dark matter, racism and misogyny in science, and the controversy surrounding the Thirty Meter Telescope.

    Mar 8, 2021·45m
  36. 36

    2020: Year in Physics Review Part 2: Concluding our countdown of the biggest stories of the year in physics, as chosen by quantum physicist Ian Durham.

    A quantum physicist discusses the top physics stories of 2020, including an experiment testing Wigner's friend thought experiment.

    Dec 31, 2020·42m
  37. 37

    2020: Year in Physics Review Part 1: Beginning our countdown of the biggest stories in foundational physics and beyond, as chosen by quantum physicist Ian Durham.

    A countdown of the biggest science stories of 2020, focusing on physics and astronomy, hosted by Zia Murali with quantum physicist Ian Durham.

    Dec 29, 2020·23m
  38. 38

    #ShutDownSTEM and the #Strike4BlackLives; Retrocausality Reviewed; Measuring Consciousness in Fruit Flies; Superior -- The Return of Race Science; & the Mystery of the Monster Galaxy.

    This episode covers a range of topics from retrocausality and consciousness in fruit flies to anti-racism in academia and the return of race science.

    Jun 14, 2020·1h
  39. 39

    2019: Year in Physics Review Part 2: Concluding our countdown of the biggest stories of the year in physics, as chosen by quantum physicist Ian Durham.

    A countdown of the biggest physics stories of the year, featuring a tie for number five between an antimatter interferometer and another experiment using the same methodology.

    Dec 31, 2019·50m
  40. 40

    2019: Year in Physics Review Part 1 Beginning our countdown of the biggest stories of the year in physics, as chosen by quantum physicist Ian Durham.

    Host Zia Merali and physicist Ian Durham count down the biggest stories in foundational physics from 2019, discussing dark matter and other breakthroughs.

    Dec 29, 2019·31m
  41. 41

    An amped up version of the Schrodinger Cat Paradox spells trouble for all quantum interpretations -- according to its architect Renato Renner. He tells Zeeya and Brendan how the controversial thought experiment works, and why he thinks it is bad news for...

    Dec 24, 2019·57m
  42. 42

    Quantum Supremacy Milestone? Rumours abound that Google's quantum processor Sycamore has performed a task that would flummox the best classical computer — a first in quantum computing. Physicist Ian Durham assesses the claims, gives us a quantum...

    Oct 6, 2019·36m
  43. 43

    Quantum Mind Reading. Could we create a quantum experiment to predict what a person will do, without having to simulate their consciousness? Physicist Adam Brown argues a classic quantum "bomb tester" proposed in the 1990s could be modified to do just...

    A physicist argues that quantum mechanics makes human behavior more predictable and discusses a theoretical experiment to predict actions.

    Sep 8, 2019·28m
  44. 44

    Downward Causation. Cosmologist George Ellis investigates agency and argues that causation is a two-way process between the mind and lower level biological and physical functions. From the 6th FQXi meeting in Tuscany, in July.

    Aug 19, 2019·21m
  45. 45

    Designing the Mind. Cognitive scientist Susan Schneider talks transhumanism and asks at what point does human enhancement go too far? Are we in danger of accidentally destroying ourselves through technological augmentation and creating new beings in our...

    Aug 15, 2019·25m
  46. 46

    Measuring Free Will. To what degree are our choices really free, rather than determined? And how much control do we have over them? Quantum physicist Ian Durham presents a new mathematical model for free will. From the 6th FQXi Meeting, in Tuscany.

    Aug 13, 2019·22m
  47. 47

    How do we make decisions? Physicist Carlo Rovelli discusses the science behind choice -- arguing that agency is intimately tied to time's arrow. From the 6th FQXi meeting in Tuscany.

    Aug 12, 2019·36m
  48. 48

    Building an AI Physicist. Cosmologist Max Tegmark describes the challenges with creating trustworthy artificial intelligence, and his own project writing a code that used neural networks to re-discover 100 equations from the Feynman lectures.

    Aug 9, 2019·15m
  49. 49

    The Limits of Computation. Astrophysicist Fred Adams argues the world will run out of resources for computation in 32 years without a paradigm shift. And he discusses how alien civilizations could mine stars to create solar-system-sized "black cloud...

    Astrophysicist Fred Adams discusses the physical limits of computation and potential solutions like a solar system-sized computer.

    Aug 1, 2019·21m
  50. 50

    Causality, Memory and the Arrow of Time. Cosmologist Sean Carroll is searching for a mathematical description of why causes precede effects and asking what makes our memories of the past special. Audio of a talk from the FQXi meeting in Tuscany.

    Jul 30, 2019·24m