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Genie 4: A new generation of world simulation

Envision walking down a bustling Tokyo street at twilight in a virtual world. You turn a corner, and a sudden rain shower begins—not because it was pre-scripted into a video file, but because the world model is computing the #physics, the sound of droplets hitting umbrellas, and the way pedestrians react in real time.

That is the shift happening with Genie 4, Google DeepMind’s most realistic and interactive world model yet.

Instead of rendering static video files frame-by-frame or following pre-rendered animations, Genie 4 generates dynamic, living environments that respond fluidly as you explore them. Every sight, ambient sound, and human interaction adapts instantly to input.

To understand why this is a massive leap forward, think about where interactive simulations are heading:

* Next-Gen Game Prototyping: Developers can “sketch” interactive environments on the fly. Rather than spending months manually coding physics, lighting, and non-player character (NPC) behaviors, creators can generate fully responsive worlds instantly.

* Hyper-Realistic Training Simulations: Emergency responders, pilots, and medical professionals can train in infinitely variable, high-stakes scenarios that react naturally to split-second decisions, far beyond the limits of scripted branching paths.

Continue reading “Genie 4: A new generation of world simulation” | >

Forgotten Particle Could Answer The Mystery of Why We Exist, Say Physicists

The Big Bang should have been the start and the end of the Universe, as we understand it.

In many ways, the cosmos likes balance, so it’s thought the Big Bang should have made matter and antimatter in equal amounts, leading them to destroy each other and leave only space and energy.

But an infinitesimal imbalance existed at some point in the early Universe that allowed matter to exist, which is important because humans and other stuff tend to be made of matter.

Study establishes new perioperative standard in prostate cancer

An international phase 3 clinical trial that treated patients with high-risk localized and locally advanced prostate cancer with apalutamide — a next-generation neoadjuvant androgen-receptor pathway inhibitor (ARPI) — plus hormone therapy before and after prostate cancer surgery, was further validated by a substudy demonstrating a reduced risk of metastasis or death compared with standard of care.

The substudy, co-led by principal investigator Mary-Ellen Taplin, MD, medical oncologist at Dana-Farber Cancer Institute, was presented at the European Society for Medical Oncology (ESMO) Congress 2026 in Madrid, Spain and published today in European Urology. Alberto Briganti, MD, PhD, Professor of Urology at Vita-Salute San Raffaele University in Milan, Italy, presented the data at ESMO.

Previous Dana-Farber research led by Taplin, presented earlier this year at the American Society for Clinical Oncology (ASCO) Annual Meeting and published in The New England Journal of Medicine, found that apalutamide plus androgen-deprivation hormone therapy (ADT) prior to and after surgery showed significant promise for patients with high-risk localized prostate cancer. Patients treated with the apalutamide plus hormone therapy regimen were nine times more likely to have little to no cancer present at surgery, reduced the risk of metastases or death by 20% and delayed subsequent therapy by 33 months compared to ADT alone.

New converter could bridge light wavelength gap in quantum communications

Quantum networks, systems that connect devices using quantum mechanical effects, could potentially allow users to share information more securely and efficiently. Building these networks typically entails linking stationary qubits, units of quantum information encoded in trapped ions or other physical systems, using photons (particles of light) transmitted through optical fibers.

One challenge when trying to realize quantum networks is that some physical systems that serve as qubits emit ultraviolet light, electromagnetic radiation with wavelengths ranging from approximately 100 to 400 nanometers. This is problematic because optical fibers, the thin light-guiding strands used to link quantum devices, are known to transmit light at these wavelengths poorly.

Researchers at the University of Science and Technology of China, Jinan Institute of Quantum Technology and other institutions recently developed a new converter that could help to bridge the gap between the ultraviolet light emitted by these systems and the light wavelengths transmitted with fewer losses through optical fibers. Their device, introduced in a paper published in Physical Review Letters, relies on thin-film lithium niobate, a crystalline material that enables interactions between light waves with different wavelengths, patterned into a structure that confines and directs light.

Human and chimpanzee leaders share a taste for risk

People in leadership positions tend to rate themselves as more risk-loving than those without leadership responsibilities—and a similar pattern emerges among chimpanzees: High-ranking individuals are perceived as more risk-taking than their lower-ranking peers. This is the conclusion of a new study by researchers at the Max Planck Institute for Human Development, Dresden University of Technology, and the University of Portsmouth, published in The Leadership Quarterly.

What makes the findings compelling is that the link between leadership and risk-taking emerges in both humans and chimpanzees. As both species share a common ancestor, this relationship may have deep evolutionary roots. The study thus provides new evidence that traits associated with leadership and social influence are not shaped exclusively by modern social structures but may already have played a role in early forms of social coexistence.

Evidence for the representation of non-hierarchical structures in language

The grammar tree might be a myth—or at least, not the whole story.

For decades, the reigning idea in linguistics—the one tied to Noam Chomsky—was that human language lives in the brain as hierarchy. Nested grammatical trees. Deep, abstract rules we supposedly compute before we speak.

A new study says: not so fast. https://www.nature.com/articles/s41562-025-02387-z.

Researchers ran four experiments with nearly 500 English speakers, plus two analyses of real-world language—eye-tracked reading and everyday conversation. What they found: our brains also store simple, flat sequences of word types, like “verb + preposition + determiner,” that cut straight across traditional grammatical boundaries. People could be primed on these linear chunks even when no full grammatical phrase was present—and the effect showed up in natural reading and conversation too.

To be clear: this doesn’t kill hierarchical grammar outright. The paper says these flat structures can’t be explained by traditional constituents—which is a real challenge to major theories, generative and constructionist alike. A challenge, not a funeral.

But it does poke a hole in a familiar story.

Critics have long dismissed AI like ChatGPT as “just a next-token predictor”—not truly intelligent, because it doesn’t grasp deep grammatical hierarchy the way humans supposedly do.

Continue reading “Evidence for the representation of non-hierarchical structures in language” | >

Two distinct sleep stages emerge in jumping spider, including a REM-like state

Humans and other vertebrates go through various stages of sleep, including REM (rapid eye movement) sleep characterized by rapid eye movements and muscle twitches. Can a similar sleep state be observed in spiders? Researchers from the Institute of Organismic Biology at the University of Bonn investigated this in the Australian jumping spider Portia fimbriata. The work is published in the journal Proceedings of the National Academy of Sciences.

The researchers investigated whether spiders actually sleep—and whether, like humans and other animals, they go through different stages of sleep. To do this, they recorded the behavior of the Australian jumping spider Portia fimbriata in high resolution over several days and nights and conducted experimental tests. What is known about sleep comes almost exclusively from vertebrates. Until now, experimental evidence for true sleep behavior in spiders was lacking.

Species of the genus Portia feed on other spiders. Their diverse hunting strategies are often interpreted as a sign of intelligence: for example, they mimic the vibrations of wriggling insects caught in the web to attract web-building spiders. Their sophisticated hunting behavior suggests special learning abilities. That’s what makes this spider so interesting. The Australian jumping spider Portia fimbriata, which the researchers studied, is about the size of a one-euro coin when fully grown.