[[Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube](https://youtu.be/XTSdPSOcdjI))))) Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube] [[Entanglement as the Glue of Spacetime - YouTube]([Entanglement as the Glue of Spacetime - YouTube]([Entanglement as the Glue of Spacetime - YouTube]([Entanglement as the Glue of Spacetime - YouTube](https://www.youtube.com/watch?v=bxY1PK4wW1I)))) Entanglement as the Glue of Spacetime - YouTube] [[Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube]([Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube](https://youtu.be/XTSdPSOcdjI))))) Episode 45: Leonard Susskind on Quantum Information, Quantum Gravity, and Holography - YouTube] Most intuitive nonmathematical 6 minute video: [[The Holographic Universe Explained - YouTube]([The Holographic Universe Explained - YouTube](https://www.youtube.com/watch?v=klpDHn8viX8)) LThe Holographic Universe Explained by PBS Spacetime] Most intuitive nonmathematical 6 minute video: [[Leonard Susskind - Is the Cosmos a Computer? - YouTube](https://www.youtube.com/watch?v=kttj9C8SWY8&list=PLFJr3pJl27pKqs2yZ3LLJR0hpyIS-jxi9&index=3) Leonard Susskind - Is the Cosmos a Computer? by Closer to Truth on Youtube] ==Science -> Physics -> Unity -> Asymptotic gravity== [[Asymptotic safety in quantum gravity - Wikipedia]([Asymptotic safety in quantum gravity - Wikipedia]([Asymptotic safety in quantum gravity - Wikipedia](https://en.wikipedia.org/wiki/Asymptotic_safety_in_quantum_gravity))) Asymptotic safety in quantum gravity Wikipedia] ==Science -> Physics -> Unity -> Woflram physics project: Hypergraphs == [[Finally We May Have a Path to the Fundamental Theory of Physics… and It’s Beautiful—Stephen Wolfram Writings](https://writings.stephenwolfram.com/2020/04/finally-we-may-have-a-path-to-the-fundamental-theory-of-physics-and-its-beautiful/) Finally We May Have a Path to the Fundamental Theory of Physics… and It’s Beautiful—Stephen Wolfram Writings] [[The Wolfram Physics Project: A One-Year Update—Stephen Wolfram Writings](https://writings.stephenwolfram.com/2021/04/the-wolfram-physics-project-a-one-year-update/) The Wolfram Physics Project: A One-Year Update—Stephen Wolfram Writings] ==Science -> Physics -> Unity -> Cellular Automaton Interpretation of Quantum Mechanics== [[[1405.1548] The Cellular Automaton Interpretation of Quantum Mechanics]([[1405.1548] The Cellular Automaton Interpretation of Quantum Mechanics](https://arxiv.org/abs/1405.1548)) [1405.1548] The Cellular Automaton Interpretation of Quantum Mechanics] ==Science -> Physics -> Unity -> Amplituhedron == [[Amplituhedron - Wikipedia](https://en.wikipedia.org/wiki/Amplituhedron) Amplituhedron - Wikipedia] [[Unwinding the amplituhedron - Nima Arkani-Hamed - YouTube](https://www.youtube.com/watch?v=WGNZEZcO3bo) Unwinding the amplituhedron - Nima Arkani-Hamed - YouTube] [[Donald Hoffman: The Nature of Consciousness [Technical] - YouTube]([Donald Hoffman: The Nature of Consciousness [Technical] - YouTube](https://www.youtube.com/watch?v=CmieNQH7Q4w)) Donald Hoffman: The Nature of Consciousness [Technical] - YouTube] ==Science -> Physics -> Unity -> Other== ==Science -> General math of emergence of higher scales and other fields from physics== I'm curious to see a concrete step by step how you go derive from quantum field theory standard model equations (Wave, Dirac, Klein-Gordon, Proca, Yang-Mills,... equations) darwinian dynamics equations or something similar to it, or rate equations in chemistry, or differential equations for celluar processes, hodgkin huxley model for neurons in biophysics etc. Can Assembly theory help? https://twitter.com/leecronin/status/1711535919654658443 Will quantum chemistry get there? [Effective Individual And Collective Wellbeing Engineering - Qualia Research]([Effective Individual And Collective Wellbeing Engineering - Qualia Research]([Effective Individual And Collective Wellbeing Engineering - Qualia Research](https://qualiaresearch.miraheze.org/wiki/Effective_Individual_And_Collective_Wellbeing_Engineering)#Science_-%3E_Chemistry_-%3E_Chemical_physics_and_quantum_chemistry)) You can perform long, expensive quantum mechanical simulations to reproduce chemical processes. It's a lengthy process to simulate just a few picoseconds of a dozen atoms interacting, and the difficulty scales exponentially with the number of particles (a little bit less with good approximations, but the point stands). It's all theoretically possible, but for 99% of chemistry its still not practical to simulace chemistry just using fundamental physics. Quantum computers are more and more helping in simulating quantum systems! These tools allow us to study physical systems froms a more zoomed out bird eye abstracted view to reduce the giant complexity of the underlying interacting particles for us to more easily grasp and simulate reality on higher scales. [[Reddit - Dive into anything]([Reddit - Dive into anything]([Reddit - Dive into anything](https://www.reddit.com/r/Physics/comments/ez7yqw/has_chemistry_been_reduced_to_physics/))) Reddit - Dive into anything] [[Sabine Hossenfelder: Superdeterminism & Geometric Unity - YouTube]([Sabine Hossenfelder: Superdeterminism & Geometric Unity - YouTube](https://youtu.be/walaNM7KiYA?si=86-7VPswxTNhIZMi&t=1222)) Sabine Hossenfelder: Superdeterminism & Geometric Unity - YouTube] [[Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9]([Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9]([Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9](https://sci-hub.se/https://link.springer.com/chapter/10.1007/978-3-030-11301-8_9))) Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9] ==Science -> General math of emergence of higher scales and other fields from physics -> Effective Field Theory== In physics, an effective field theory is a type of approximation, or effective theory, for an underlying physical theory, such as a quantum field theory or a statistical mechanics model. An effective field theory includes the appropriate degrees of freedom to describe physical phenomena occurring at a chosen length scale or energy scale, while ignoring substructure and degrees of freedom at shorter distances (or, equivalently, at higher energies). Intuitively, one averages over the behavior of the underlying theory at shorter length scales to derive what is hoped to be a simplified model at longer length scales. [[Effective field theory - Wikipedia](https://en.wikipedia.org/wiki/Effective_field_theory) Effective field theory] [[Sabine Hossenfelder: Superdeterminism & Geometric Unity - YouTube]([Sabine Hossenfelder: Superdeterminism & Geometric Unity - YouTube](https://youtu.be/walaNM7KiYA?si=86-7VPswxTNhIZMi&t=1222)) Sabine Hossenfelder: Superdeterminism & Geometric Unity - YouTube] [[Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9]([Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9]([Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9](https://sci-hub.se/https://link.springer.com/chapter/10.1007/978-3-030-11301-8_9))) Sci-Hub | The Case for Strong Emergence. What Is Fundamental?, 85–94 | 10.1007/978-3-030-11301-8_9] ==Science -> General math of emergence of higher scales and other fields from physics -> Renormalization Group== As the scale varies, it is as if one is changing the magnifying power of a notional microscope viewing the system. In so-called renormalizable theories, the system at one scale will generally consist of self-similar copies of itself when viewed at a smaller scale, with different parameters describing the components of the system. The components, or fundamental variables, may relate to atoms, elementary particles, atomic spins, etc. The parameters of the theory typically describe the interactions of the components. [[Renormalization group - Wikipedia](https://en.wikipedia.org/wiki/Renormalization_group) Renormalization group Wikipedia] [https://arxiv.org/pdf/1906.10184.pdf Untitled] [[Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube]([Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube]([Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube](https://youtu.be/J6eJ44Jq_pw?si=EOL04xyas9f4d9SN&t=4798))) Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube] ==Science -> General math of emergence of higher scales and other fields from physics -> Pointcare Map== In mathematics, particularly in dynamical systems, a first recurrence map or Poincaré map, named after Henri Poincaré, is the intersection of a periodic orbit in the state space of a continuous dynamical system with a certain lower-dimensional subspace, called the Poincaré section, transversal to the flow of the system. More precisely, one considers a periodic orbit with initial conditions within a section of the space, which leaves that section afterwards, and observes the point at which this orbit first returns to the section. One then creates a map to send the first point to the second, hence the name first recurrence map. [[Poincaré map - Wikipedia](https://en.wikipedia.org/wiki/Poincar%C3%A9_map) Poincaré map Wikipedia] [[Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube]([Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube]([Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube](https://youtu.be/J6eJ44Jq_pw?si=EOL04xyas9f4d9SN&t=4798))) Levin Λ Friston Λ Fields: "Meta" Hard Problem of Consciousness - YouTube] ==Science -> General math of emergence of higher scales and other fields from physics -> Petrubation theory== In mathematics and applied mathematics, perturbation theory comprises methods for finding an approximate solution to a problem, by starting from the exact solution of a related, simpler problem. A critical feature of the technique is a middle step that breaks the problem into "solvable" and "perturbative" parts. [[Perturbation theory - Wikipedia]([Perturbation theory - Wikipedia](https://en.wikipedia.org/wiki/Perturbation_theory)) Perturbation theory Wiki] ==Science -> General math of emergence of higher scales and other fields from physics -> Free energy principle== The mathematical machinery of the free energy principle can be used across scales. [[[1906.10184] A free energy principle for a particular physics](https://arxiv.org/abs/1906.10184) A free energy principle for a particular physics by Karl Friston] [https://www.sciencedirect.com/science/article/pii/S037015732300203X The free energy principle made simpler but not too simple] [[Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube](https://www.youtube.com/watch?v=2v7LBABwZKA)))))) Karl Friston: The "Meta" Free Energy Principle - YouTube] ==Science -> Systems science== [[Systems science - Wikipedia]([Systems science - Wikipedia]([Systems science - Wikipedia](https://en.wikipedia.org/wiki/Systems_science))) Systems science - Wikipedia] ==Science -> Classical physics and systems science -> Unity -> Free energy principle== Free energy principle takes mathematical machinery from classical mechanics, statistical mechanics, information theory, cybernetics, and dynamical systems theory to model organisms (or any thing corresponding to a nonequilibrium system in general) by information flow on a markov blanket synchroning with the states in the environment through predicting, approximately modelling and acting. [https://www.sciencedirect.com/science/article/pii/S037015732300203X The free energy principle made simpler but not too simple by Karl Friston] [https://royalsocietypublishing.org/doi/10.1098/rsfs.2022.002 On Bayesian mechanics: a physics of and by beliefs by Maxwell J. D. Ramstead] [[Free energy principle - Wikipedia]([Free energy principle - Wikipedia]([Free energy principle - Wikipedia](https://en.wikipedia.org/wiki/Free_energy_principle))) Free energy principle - Wikipedia] [[Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube]([Karl Friston: The "Meta" Free Energy Principle - YouTube](https://www.youtube.com/watch?v=2v7LBABwZKA)))))) Karl Friston: The "Meta" Free Energy Principle - YouTube] [[#67 Prof. KARL FRISTON 2.0 [Unplugged] - YouTube](https://youtu.be/xKQ-F2-o8uM) #67 Prof. KARL FRISTON 2.0 [Unplugged] - YouTube] ==Science -> All of physics and systems science -> Unity -> Quantum Free energy principle== Observers learn using cone-cocone diagram - hiarchical bayesian network with collections of nodes computing in higher order shared context that coarse grains. They read from holographic screens from a particular reference frame that is used to communicate with other agents: [[[2112.15242] A free energy principle for generic quantum systems]([[2112.15242] A free energy principle for generic quantum systems]([[2112.15242] A free energy principle for generic quantum systems]([[2112.15242] A free energy principle for generic quantum systems]([[2112.15242] A free energy principle for generic quantum systems](https://arxiv.org/abs/2112.15242))))) [2112.15242] A free energy principle for generic quantum systems] [[Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023]([Physics as Information Processing ~ Chris Fields ~ AII 2023](https://coda.io/@active-inference-institute/fields-physics-2023)))))))))))))))))) Physics as Information Processing ~ Chris Fields ~ AII 2023] [[ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube]([ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube](https://www.youtube.com/watch?v=-qZYxSbJ38E))))))))) ActInf Livestream #040.0 ~ "A free energy principle for generic quantum systems" - YouTube] ==Science -> Philosophical interpretations of physics and other maths== [[Interpretations of quantum mechanics - Wikipedia](https://en.wikipedia.org/wiki/Interpretations_of_quantum_mechanics) Interpretations of quantum mechanics - Wikipedia] [[Quantum Physics – list of Philosophical Interpretations - YouTube]([Quantum Physics – list of Philosophical Interpretations - YouTube](https://www.youtube.com/watch?v=XQ25E9gu4qI)) Quantum Physics – list of Philosophical Interpretations - YouTube] ==Science -> Philosophical interpretations of physics and other maths -> Quantum darwinism== ==Science -> Philosophical interpretations of physics and other maths -> Superdeterminism== Superdeterminism describes the set of local hidden-variable theories consistent with the results of experiments derived from Bell's theorem which include a local correlation between the measurement settings and the state being measured. Superdeterministic theories are not interpretations of quantum mechanics, but deeper theories which reproduce the predictions of quantum mechanics on average, for which a few toy models have been proposed. In such theories, "the probabilities of quantum theory then become no more mysterious than those used in classical statistical mechanics." [[Superdeterminism - Wikipedia]([Superdeterminism - Wikipedia]([Superdeterminism - Wikipedia](https://en.wikipedia.org/wiki/Superdeterminism))) Superdeterminism - Wikipedia] ==Science -> Philosophical interpretations of physics and other maths -> QBism== In physics and the philosophy of physics, quantum Bayesianism is a collection of related approaches to the interpretation of quantum mechanics, the most prominent of which is QBism (pronounced "cubism"). QBism is an interpretation that takes an agent's actions and experiences as the central concerns of the theory. QBism deals with common questions in the interpretation of quantum theory about the nature of wavefunction superposition, quantum measurement, and entanglement.[1][2] According to QBism, many, but not all, aspects of the quantum formalism are subjective in nature. For example, in this interpretation, a quantum state is not an element of reality—instead it represents the degrees of belief an agent has about the possible outcomes of measurements. Participatory realism: reality consists of more than can be captured by any putative third-person account of it. [[Quantum - Wikipedia](https://en.wikipedia.org/wiki/Quantum)_Bayesianism Quantum Bayesianism - Wikipedia] ==Science -> Philosophical interpretations of physics and other maths -> My favorite==