Pinun Hamon

@simongerman600 Is that the basketball court where no girls are going?

This map shows how boys (blue) and girls (red) spend their breaks in a school in Barcelona. This school is used as a case study of space shared equitably. Often in such studies boys simply play on the sports fields while girls spend their break talking or on non-sport playgrounds. Design can impact movement patterns massively. Source: buff.ly/yg47GX7

@jessi_cata Like if our brain could see each colour as a spectrum but be unable to classify them. That would be quite impossible. Only if the colors themselves kept on changing. Only way if the electromagnetic radiation kept on changing wavelength

@pinunhamon yeah it's a sci fi hypothetical, "If the colors were not structurally distinct"

Qualia realists cite color experience as something physics can never explain. Physically, color is like sound: wavelength. If we could see color better, we could see it is like sound, subject to redshift/blueshift. Colors are not raw qualities, they are structurally distinct.

@justinskycak Like your tweets

The most dangerous study method is the one that makes you feel smart while preserving every weakness.

@g8ge I think you misunderstood me. I am genuinely curious about this. It sounds very interesting. would love to hear how you think this can be applied or further built upon.

Home? I have no home. Hunted... despised... living like an animal. The jungle is my home! But I will show the world that I can be its master. I will perfect my own race of people. A race of atomic supermen, which will conquer the world!

@g8ge What?

@jessi_cata you’re doing color physics. I don’t know if color can be a reference frame. Time and space seem far more fundamental and color is just a particular wavelength of light.

We point in a spatial direction with a physical arrow-shaped object. This object looks different from different perspectives. Similarly we could point in these chromatic dimensions with colored objects. It would be more relativity theory and gauge theory.

@ZhengyangGeng Love attractors. Seems I am stuck in one

What's the secret sauce behind leaning attractors? Stable & amortized optimization. Here is the controlled study of how we built EqR!

@bravo_abad Incredible. The A priori and A posteriori debate in philosophy has a lot to learn from this. It seems criticality is in built in neuronal networks something we would expect.

A critical initialization for biological neural networks Spontaneous brain activity is often treated as noise: the background hum of a nervous system waiting for a task. But large-scale recordings in mice have shown something more structured. Even in darkness, without explicit stimuli, thousands of neurons display coordinated activity patterns that extend across the brain and persist far longer than the fast biophysical timescales of individual neurons. Marius Pachitariu and coauthors ask a simple question: could this macroscopic structure emerge from a simple kind of network initialization? Their answer connects neuroscience, random matrix theory and machine learning. They model spontaneous neural activity as linear dynamics governed by a random connectivity matrix, stabilized by a global inhibitory-like normalization. When this matrix is symmetric and critically normalized, with its largest eigenvalue very close to one, the network naturally produces high-dimensional activity modes with a power-law covariance spectrum. This is not just a mathematical curiosity. The same spectral structure appears in large-scale mouse recordings from cortex and brainwide Neuropixels data, with power-law exponents around 0.7–0.85. Hippocampal CA1 is the striking exception: its activity looks less correlated, closer to an efficient, high-capacity code for information storage. The ML perspective is especially interesting. In artificial neural networks, initialization is often treated as a technical detail: Xavier, He, orthogonal schemes, and so on. But this paper reframes initialization as a computational substrate. A critically initialized recurrent system can generate slow, global, high-dimensional modes before task-specific learning. In simulations, these dynamics support time-dependent computations, including zero-shot working memory tasks. The biological implication is powerful: spontaneous activity may not be random noise, but a preconfigured dynamical scaffold on which learning and computation can operate. The brain may start from an initialization already close to useful temporal memory, with learning then shaping readouts or task-specific pathways. For R&D teams building ML systems in drug discovery, materials development, energy research or biotechnology, the lesson is broader than neuroscience. Initialization, architecture and dynamics define what kinds of scientific signals a model can preserve, combine and retrieve before training. In applied research pipelines where data are scarce, noisy and time-dependent, designing the right dynamical substrate may be as important as choosing the loss function. Source: Pachitariu et al., Nature (2026) — CC BY 4.0 | doi.org/10.1038/s41586…

@g8ge @NIST @JQInews @UBuffalo @QuantumIQC @PhysicsUo What are the implications or applications of this?

Ultrafast electron vortex produced by a grating made of light arxiv.org/abs/2604.25546 @NIST @JQInews @UBuffalo @QuantumIQC @PhysicsUo

@nmitra2k Nice.

@pinunhamon Cnc Machine

Nerding my way to some hardcore rooms since 2000.

@oznova_ So they are easy to learn but hard to teach??

Yup. You can learn these things too, but frankly they may be as hard to teach to a human as to build into an RL environment

@nmitra2k I bet. But what is it?

@pinunhamon A great teacher

@MacrinePhD One of the things about quantum mechanics is that sometimes individual particles have no existence except in relation to other entangled particles. Classical physics each component can have its own individual existence and properties and yet be part of the whole.

What if quantum mechanics isn't a separate reality, but just classical physics with a twist? A groundbreaking paper shows the Schrödinger equation can be solved exactly using only classical least action, deriving QM postulates directly—no semi-classical approximations needed. By combining multi-valued classical action with classical density along "multipaths" (from double slits, boxes, or singularities), it constructs the exact wave function $\psi$. It even extends to Klein-Gordon, Pauli, and Dirac equations, deriving wave collapse from classical density changes and entanglement from summed actions. Bonus: It offers a simpler, minimal-path computational alternative to Feynman path integrals! x.com/macrinephd/sta… #QuantumPhysics #Feynman #Physics #TheoreticalPhysics #QuantumMechanics #Schrödinger #ClassicalMechanics #Physics #SchrodingerEquation #MathPhysics #ScienceNews #Innovation #STEM #Sciencetwitter

@DoctorLemma Holy shit

Dolphins are some of the few animals known to invent toys using nothing but their own breath. Biologists have captured footage of them deliberately exhaling perfect silver bubble rings underwater, then using their snouts to spin them, flip them, and swim right through them.

@elle_carnitine Is there a way to cheaply detect pTau-217

A recent study in Nature Medicine shows that pTau-217 precedes Alzheimer's disease by 15 to 20 years. We need more research but based on this, it looks like we should expect an enormous wave of Alzheimer's disease beginning in roughly 10 years nature.com/articles/s4159…

@leland_mcinnes What is the application of this ?

I'm looking to find people interested in semi-supervised clustering, particularly with hard "must not be in the same cluster" constraints, to better understand your use cases.

@juliet_turner6 Pink??

Homegrown oyster mushrooms!

@AliBeckZeck Bravo. It’s best to regulate yourself than give your life up to placate the egos of crooks.

I am ten years off of all psychiatric drugs this week, after being polydrugged by psychiatry for 25 years. Here’s what I want to say: To my ex treating psychiatrist, who diagnosed me with “bipolar” disorder when I was in the middle of acute benzo withdrawal, then a few months later, threw up his hands in exasperation at me and said “I don’t know what to do with you Ali. These drugs work for everybody else,” and then scheduled me for ECT…. You lied. The year that you said that to me I found out later you had two of your patients take their own lives. You are ignorant and dangerous and I proved you wrong. To my ex treating therapist, Dr. P., who saw me for years, knew the physical abuse I endured, the chaos, the family history of wife and child abuse and all of the infidelities, and yet, somehow disguised me with “genetic mental illness,” and made me repeat after her: “My name is Ali. I have a genetic mental illness that will require medication for the rest of my life,” even though I told you the drugs made me feel weird. When I told her I was trying to come off of the drugs and treat it more holistically she laughed me and said that was just silly. You were wrong, you are ignorant, and you are also harmful. You both pulled me into an underworld of disconnection, soul crushing pain for decades. May karma find you both in a dark alley.

@healingfromlc What do you mean? Ct contrast damaged your brain?

I cannot cope anymore with what the CT contrast has done to my brain. Every second of every day is torture. I wouldn’t wish this on anyone but I miss having people to talk to about how I feel. This appears to be substantially rarer than Long COVID. I feel completely alone now.