Theories of Everything with Curt Jaimungal

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Ginestra Bianconi thinks gravity can be derived from entropy — and that gravity itself is fundamentally anti-reductionistic, since it's about geometry rather than isolated particle interactions. In this episode, the network-topologist-turned-gravity-theorist explains her "Gravity from Entropy" action, which treats matter and geometry symmetrically through a geometric quantum relative entropy (not the horizon entropy of Verlinde or Jacobson). She details why it reduces to Einstein's equations at low energy while predicting a dynamical, always-positive dark energy term (the "G field"), how it may avoid black hole singularities and reproduce the area law without invoking holography, and why she believes understanding the brain may be harder than understanding quantum gravity. We close with her advice for young researchers. I hope you enjoy.

TIMESTAMPS:
- 00:00 - Information Content of Geometry
- 07:38 - Geometric Quantum Relative Entropy
- 15:58 - Geometrizing the Matter Field
- 23:45 - Emergent Dark Energy
- 30:12 - Statistical Mechanics vs Thermodynamics
- 37:59 - Structure and Dynamics Interplay
- 45:20 - Holography and Area Law
- 51:23 - Interdisciplinary Research Vision

LINKS MENTIONED:
Ginestra's Webpage: https://webspace.maths.qmul.ac.uk/g.bianconi/
Ginestra's Papers: https://scholar.google.com/citations?user=ycQXwWgAAAAJ
Gravity from Entropy [Paper]: https://arxiv.org/abs/2408.14391
Geons, Black Holes, and Quantum Foam [Book]: https://amazon.com/dp/0393319911?tag=toe08-20
The Thermodynamics of the Gravity from Entropy Theory [Paper]: https://arxiv.org/abs/2510.22545
Notes on Some Entanglement Properties of Quantum Field Theory [Paper]: https://arxiv.org/abs/1803.04993
Inflation from Entropy [Paper]: https://arxiv.org/abs/2509.23987
Thermodynamics of Spacetime: The Einstein Equation of State [Paper]: https://arxiv.org/abs/gr-qc/9504004
More Is Different [Paper]: https://www.science.org/doi/10.1126/science.177.4047.393
Information, Physics, Quantum [Paper]: https://philpapers.org/archive/WHEIPQ.pdf
Network Geometry with Flavor [Paper]: https://arxiv.org/abs/1511.04539
Black Holes and Entropy [Paper]: https://physicsgg.me/wp-content/uploads/2014/03/black-holes-and-entropy_bekenstein.pdf
Ginestra's Lecture on Higher-Order Networks: https://youtu.be/o4TWDTgqQKY
Elan Barenholtz [TOE]: https://youtu.be/A36OumnSrWY
Frederic Schuller [TOE]: https://youtu.be/Bnh-UNrxYZg
Erik Verlinde [TOE]: https://youtu.be/ilVImMHcr_g
Ted Jacobson [TOE]: https://youtu.be/3mhctWlXyV8
Karl Friston [TOE]: https://youtu.be/2v7LBABwZKA
Subir Sarkar [TOE]: https://youtu.be/epkuoytFJWA
Stephen Wolfram [TOE]: https://youtu.be/FkYer0xP37E
Roman Yampolskiy [TOE]: https://youtu.be/TgFmA-Qwsek
Eva Miranda [TOE]: https://youtu.be/6XyMepn-AZo
Cumrun Vafa [TOE]: https://youtu.be/kUHOoMX4Bqw
Neil Turok [TOE]: https://youtu.be/zNZCa1pVE20
David Kaiser [TOE]: https://youtu.be/_yebLXsIdwo
Ivette Fuentes [TOE]: https://youtu.be/YWbjI-QsH2E
Philip Mannheim [TOE]: https://youtu.be/rNXNHYvS7zU

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What does it mean to investigate the "nature of reality"? In this episode, we break down the term across philosophy, physics, mathematics, cognitive science, and theology: exploring questions of metaphysics, fundamentality, reductionism, and grounding. We also touch on a conversation with Slavoj Žižek and why the question of why the universe follows laws at all may be the deepest question of all. Plus: why art belongs in this conversation, and why "fundamental" doesn't mean what most people think it means.

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TIMESTAMPS:
- 00:00 - Metaphysical Foundations
- 02:51 - Fundamentality vs. Reductionism
- 05:12 - Phenomenology and Art
- 07:14 - Münchhausen’s Trilemma (Curt's topological interpretation)

LINKS MENTIONED:
- Quantum Healing [Book]: https://amazon.com/dp/0553348698?tag=toe08-20
- Realism [Paper]: https://www.jstor.org/stable/20115760
- Mean, Means and Meaning [Article]: https://curtjaimungal.substack.com/p/mean-means-and-meaning
- Harvey Friedman [TOE]: https://youtu.be/gx3uKT1qJvY
- The Reverse Elephant [TOE]: https://youtu.be/q2Zgp2EhSk8
- Slavoj Žižek [TOE]: https://youtu.be/ZLVxfmfds38
- John Norton [TOE]: https://youtu.be/Tghl6aS5A3M
- Most Abused Theorem in Math [TOE]: https://youtu.be/OH-ybecvuEo
- Münchhausen Trilemma: https://ncatlab.org/nlab/show/M%C3%BCnchhausen+trilemma
- Know Time Interviews Curt: https://youtu.be/K_jCtpQgqB0

FOLLOW:
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- I personally subscribe to The Economist. TOE listeners get 35% off the annual subscription. No other podcast has this! https://economist.com/TOE

This podcast is about dark matter — and Professor Philip Mannheim thinks it isn't missing at all, just hiding in plain sight as the rest of the visible universe. In his first-ever podcast, on ideas he's pursued since 1972, Mannheim lays out conformal gravity: a theory built on Weyl symmetry rather than Einstein's equations, which explains galaxy rotation curves without dark matter, tames the cosmological constant, and fits the accelerating universe without fine-tuning. With longtime collaborator Carl Bender, he also resolves gravity's infamous "ghost" problem using PT symmetry instead of Hermiticity — suggesting the graviton may not even exist as a particle. I hope you enjoy.

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TIMESTAMPS:
- 00:00:00 - Einstein's Relativity Foundations
- 00:05:47 - Riemann Tensor and Curvature
- 00:11:50 - Flaws in Einstein's Equations
- 00:17:23 - Quantum Gravity Renormalizability
- 00:23:28 - Conformal Symmetry Principles
- 00:30:09 - Dynamical Mass Generation
- 00:37:08 - Inflation and Horizon Problems
- 00:43:55 - Renormalization Group Fixed Points
- 00:51:05 - Composite Higgs Solution
- 00:57:03 - Weyl Tensor Action
- 01:03:44 - Solving Dark Matter
- 01:09:36 - Cosmic Coincidence Problem
- 01:16:27 - Hubble Tension and Redshift
- 01:24:31 - PT Symmetry and Ghosts
- 01:31:21 - Probability Conservation vs. Hermiticity
- 01:38:13 - CPT Theorem and Fermions
- 01:45:14 - Quantum Decays and Resonances
- 01:51:05 - Parity and Right-Handed Neutrinos
- 01:56:14 - Gravitons and Wavefunction Collapse
- 02:02:24 - Cyclic Universes and Singularities
- 02:08:24 - String Theory Fine-Tuning
- 02:14:45 - Unitarity and Poincaré Stresses
- 02:21:02 - Gravitational Lensing and Tenure
- 02:26:55 - Nature and Experimental Data

LINKS MENTIONED:
- Philip's Papers: https://inspirehep.net/authors/998943
- Newton's Law Of Gravity: https://en.wikipedia.org/wiki/Newton%27s_law_of_universal_gravitation
- Geodesics: https://en.wikipedia.org/wiki/Geodesics_in_general_relativity
- Equivalence Principle: https://en.wikipedia.org/wiki/Equivalence_principle
- Introduction To General Relativity [Book]: https://amazon.com/dp/0070004234?tag=toe08-20
- Foundation Of The General Theory Of Relativity [Paper]: https://isidore.co/misc/Physics%20papers%20and%20books/St.%20John's%20College's,%20TAC's%20curricula's,%20et%20alii%20sci.%20papers/1916-%20The%20Foundation%20of%20the%20General%20Theory%20of%20Relativity%20(Einstein).pdf
- Dynamical Symmetry Breaking As A Bootstrap [Paper]: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.12.1772
- Dynamics Of The Universe And Spontaneous Symmetry Breaking [Paper]: https://ui.adsabs.harvard.edu/abs/1980ApJ...241L..59K/abstract
- Mass Generation, The Cosmological Constant Problem, Conformal Symmetry, And The Higgs Boson [Paper]: https://arxiv.org/abs/1610.08907
- Living Without Supersymmetry [Paper]: https://arxiv.org/abs/1506.01399
- Exact Vacuum Solution To Conformal Weyl Gravity And Galactic Rotation Curves [Paper]: https://ui.adsabs.harvard.edu/abs/1989ApJ...342..635M/abstract
- No-Ghost Theorem For The Pais-Uhlenbeck Oscillator [Paper]: https://arxiv.org/abs/0706.0207
- Fitting Galactic Rotation Curves With Conformal Gravity [Paper]: https://arxiv.org/abs/1011.3495
- Cosmic Coincidence Problem: https://en.wikipedia.org/wiki/Cosmic_coincidence_problem
- Cosmological Perturbations In Conformal Gravity [Paper]: https://arxiv.org/pdf/1109.4119
- Implications Of Cosmic Repulsion For Gravitational Theory [Paper]: https://arxiv.org/abs/astro-ph/9804335
- Exact Solution To Perturbative Conformal Cosmology [Paper]: https://arxiv.org/abs/2101.02608
- CPT Symmetry Without Hermiticity [Paper]: https://arxiv.org/abs/1611.02100
- Jenny Wagner [TOE]: https://youtu.be/Bj4Ra75vvTc
- Neil Turok [TOE]: https://youtu.be/_xxLW71vT4s
- Chiara Marletto [TOE]: https://youtu.be/Uey_mUy1vN0
- John Donoghue [TOE]: https://youtu.be/dG_uKJx6Lpg
- Cumrun Vafa [TOE]: https://youtu.be/kUHOoMX4Bqw

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I personally subscribe to The Economist. TOE listeners get 35% off the annual subscription. No other podcast has this! https://economist.com/TOE

Does Batman exist? Not really—but proving he doesn't turns out to be a logical minefield. This episode tackles negative existentials: why saying "X doesn't exist" seems to require referring to X in the first place. We trace the debate from Russell's theory of descriptions, through Kripke's devastating critique in Naming and Necessity, to Meinong's radical claim that non-existent objects still populate our domain of discourse. Plus: null pointer exceptions as computer science's Meinongianism, why AI struggles with fictional facts, and why three competing theories—descriptivism, Meinongianism, and abstract realism—each come with a steep philosophical price tag. I hope you enjoy.

TIMESTAMPS:
- 00:00 - The Batman Paradox
- 03:26 - Russell’s Theory of Descriptions
- 06:36 - Kripke’s Rigid Designators
- 09:44 - Meinongian Domain Quantification
- 12:45 - Nuclear and Extra-Nuclear Properties
- 15:50 - Modal Descriptivism and AI
- 18:54 - Presentism and Temporal Ontology

LINKS MENTIONED:
- Diana Pasulka [TOE]: https://youtu.be/E5MuTHUbMUs
- Why I Don't Buy The Simulation Hypothesis [TOE]: https://youtu.be/3_lBPMc6JRY
- Elan Barenholtz [TOE]: https://youtu.be/A36OumnSrWY
- Naming And Necessity [Book]: https://neuroself.wordpress.com/wp-content/uploads/2020/11/naming-and-necessity-full-text.pdf
- Tractatus Logico-Philosophicus [Book]: https://amazon.com/dp/0486404455?tag=toe08-20
- Critique Of Pure Reason [Book]: https://amazon.com/dp/0140447474?tag=toe08-20
- The Interpretations Of Quantum Mechanics In 5 Minutes [Article]: https://curtjaimungal.substack.com/p/the-interpretations-of-quantum-mechanics
- Alexius Meinong: https://plato.stanford.edu/entries/meinong/
- On Denoting [Paper]: https://www.uvm.edu/~lderosse/courses/lang/Russell(1905).pdf
- Graham Priest [TOE]: https://youtu.be/ZGOMmGK4eeY
- Nonexistent Objects [Book]: https://amazon.com/dp/0300024045?tag=toe08-20
- Abstract Objects [Book]: https://amazon.com/dp/9027714746?tag=toe08-20
- Noam Chomsky [TOE]: https://youtu.be/RIY0GFtHU2U
- John Vervaeke [TOE]: https://youtu.be/GVj1KYGyesI
- Presentism: https://iep.utm.edu/time/
- Joscha Bach [TOE]: https://youtu.be/3MNBxfrmfmI
- Existence [Book]: https://amazon.com/dp/1107625262?tag=toe08-20

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This is a podcast all about time: depending on how you look at it, that's either unnerving or exhilarating. Professor Simon Saunders — Emeritus Fellow at Merton College, Oxford, and one of the most celebrated philosophers of physics alive — goes deep on what time actually is, why special relativity demands a block universe, and what any of this has to do with the Many Worlds Interpretation. Why doesn't space inherit the paradoxes of time? What's really missing from the block universe picture (and is it the same thing missing from quantum probability?) Saunders argues that Bell inequality violations aren't evidence against locality but evidence for Many Worlds, presents a novel derivation of the Born rule from a single physical postulate, and sketches a quantum version of Leibniz's monadology as a possible path through the mind-body problem. I hope you enjoy.

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TIMESTAMPS:
- 00:00:00 - Defining Temporal Passage
- 00:05:03 - Block Universe and Relativity
- 00:11:15 - The Timeless Viewpoint
- 00:18:07 - CMB and Global Time
- 00:23:19 - Persistence and Spatial Revisitability
- 00:31:02 - Philosophy of Physics Foundations
- 00:38:46 - Relativistic Localization Problems
- 00:49:22 - Reeh-Schlieder and Vacuum States
- 00:55:23 - Branching and Actuality
- 01:05:41 - Interval Probabilities and Frequentism
- 01:14:14 - Decoherent Histories Interpretation
- 01:25:49 - Ontic Structural Realism
- 01:32:15 - Deriving the Born Rule
- 01:38:02 - Leibnizian Quantum Monadology

LINKS MENTIONED:
- Simon's Papers: https://scholar.google.com/citations?user=htEv3XIAAAAJ
- Many Worlds? [Book]: https://amazon.com/dp/0199560560?tag=toe08-20
- A Brief History of Time [Book]: https://amazon.com/dp/0553380168?tag=toe08-20
- How Relativity Contradicts Presentism [Paper]: https://users.ox.ac.uk/~lina0174/kansas.pdf
- Trouble With Quantum Mechanics [Article]: https://www.nybooks.com/articles/2017/01/19/trouble-with-quantum-mechanics/
- Locality, Complex Numbers, and Relativistic Quantum Theory [Paper]: https://www.jstor.org/stable/192768
- Bohmian Mechanics: https://plato.stanford.edu/entries/qm-bohm/
- Finite Frequentism Explains Quantum Probability [Paper]: https://arxiv.org/abs/2404.12954
- Chance in the Everett Interpretation [Paper]: https://arxiv.org/abs/1609.04720
- Reeh-Schlieder Defeats Newton-Wigner [Paper]: https://arxiv.org/abs/quant-ph/0007060
- Everett's Thesis [Paper]: https://cqi.inf.usi.ch/qic/everett_phd.pdf
- Physics and Leibniz's Principles [Paper]: https://philpapers.org/rec/SAUPAL-2
- Critical Exposition of the Philosophy of Leibniz [Book]: https://amazon.com/dp/1605204536?tag=toe08-20
- Avshalom Elitzur [TOE]: https://youtu.be/pWRAaimQT1E
- David Wallace [TOE]: https://youtu.be/4MjNuJK5RzM
- David Deutsch [TOE]: https://youtu.be/vKeWv-cdWkM
- Sean Carroll [TOE]: https://youtu.be/9AoRxtYZrZo
- Tim Maudlin [TOE]: https://youtu.be/fU1bs5o3nss
- Sechit Madra (Trainer): https://www.instagram.com/sechit_madra

More links at https://curtjaimungal.substack.com

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